Stoichiometry

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Questions

• How do you solve a stoichiometry problem?
• What is stoichiometry?
• Question #93ac6
• Why do we study stoichiometry?
• How many grams of NaOH is produced from #1.20 x 10^2# grams of #Na_2O#? #Na_2O + H_2O -> 2NaOH#
• How many grams of Na2O are required to produce 1.60 x 102 grams of NaOH? Na2O + H2O ---> 2 NaOH
• What mass of iron is needed to react with 16.0 grams of sulfur? 8 Fe + S8 ---> 8 FeS
• According to 8 Fe + S8 ---> 8 FeS How many grams of FeS are produced?
• 12.00 moles of NaClO3 will produce how many grams of O2? 2 NaClO3 ---> 2 NaCl + 3 O2
• How many grams of NaCl are produced when 80.0 grams of O2 are produced? 2 NaClO3 ---> 2 NaCl + 3 O2
• Why is stoichiometry important in baking?
• Solid bismuth oxide can react with carbon to form bismuth metal and carbon monoxide. How many grams of bismuth oxide reacted if 60.7 grams of bismuth is formed?
• Suppose 9.5 g of gaseous C2H2 reacts with excess O2 according to the reaction below. What is the mass of CO2 produced? C2H2(g) + O2(g) → CO2(g) + H2O(ℓ)
• How can I do stoichiometry mole to mole problems?
• How can I do stoichiometry limiting reactant problems?
• What type of chemical reaction is taking place? Ca(OH)2(s) + 2 HCl(aq) ---> CaCl2(aq) + 2 H2O(l)
• How does stoichiometry relate to cooking?
• If I combine 15.0 grams of calcium hydroxide with 75.0 mL of 0.500M HCl, how many grams of calcium chloride would be formed?
• Why is stoichiometry important?
• What are some common mistakes students make with stoichiometry?
• What is an example of an stoichiometry practice problem?
• What is stoichiometry?
• Question #3f409
• Can someone please explain on the basics of stoichometry?
• What mass of #"CCl"_4# is required to react completely with #"24.7 g CH"_4#?
• Question #9fdaf
• Question #d36a3
• Question #8d737
• Question #02aab
• Question #0eb28
• Question #14ef3
• Question #7fb80
• Question #47cfa
• Question #d8775
• Question #0b96c
• Question #45d18
• Question #9dacf
• #"1423 g C"_2"H"_7"N"# undergoes incomplete combustion. What mass of #"CO"# and #"H"_2"O"# can be produced? The equation is:
• Question #c71a5
• Question #1d7ef
• Question #3870a
• Question #1272b
• Question #0a95e
• Question #41182
• Question #95958
• Question #a4ff9
• A sample of #KClO_3# on decomposition gives 448 #mL# of oxygen gas at NTP. Calculate: (a) Weight of oxygen produced (b) Weight of #KClO_3# originally taken (c) Weight of #KCl# produced?
• Question #8a010
• Question #e70cc
• How do I find the mass of copper(II) hydroxide which is formed when excess copper(II) sulfate is added to 100mL of a 0.450 mol #L^-1# solution of sodium hydroxide?
• How much NA2CO3 is needed for a full reaction with 1.0g CaCl2.2H2O?
• How would you calculate the number of grams of sodium oxide, Na2O, that will be produced when 5.00 moles react with oxygen given the reaction: 4Na + O2--> 2 Na2O?
• What are some real life uses of Stoichiometry?
• Given the reaction 2C3H7OH + 9O2 -->CO2 + 8H2O, how many moles of oxygen are needed to react with 3.40 mol C3H7OH?
• In stoichiometry, what is molar mass used for?
• Question #598b4
• Question #1a855
• Question #f5356
• #25*g# of sodium chloride are mixed with #35.0*g# silver nitrate in aqueous solution. How much silver chloride can be prepared?
• A volume of 32.45 mL of 0.122 M NaOH was required to titration 4.89 g of vinegar to a phenolphthalein end point. How many moles of NaOH were added?
• What is the total masses of the reactants for the equation: #2SeO_2 (g) + O_2->2SeO_3 (g)#?
• How do we represent the oxidation of a #31.7*g# mass of iron by chlorine gas? What mass of #FeCl_3(s)# results?
• If #"2.112 g Fe"_2"O"_3"# reacts with #"0.687 g Al"#, what is the maximum amount of #"Fe"# that can be produced?
• Why must a chemical equation be balanced to solve stoichiometry problems?
• Bauxite ore contains aluminum oxide, which is decomposed using electricity to produce aluminum metal. How many moles of aluminum metal can be produced if 100 g of oxygen is released?
• Given the equation: 2 KI + Pb(NO3)2 --> PbI2 + 2 KNO3, how would you calculate themass of PbI2 produced by reacting of 30.0 g KI with excess Pb(No3)2?
• What is the molarity of a solution of nitric acid if 0.216 of barium hydroxide is required to neutralize 20.00mL of nitric acid?
• 11.775 g of magnesium is reacted with 4.938 g of oxygen gas according to the equation: 2 Mg + O2 --> 2 MgO, what is the limiting reactant?
• Given the equation: LiOH + HBr --> LiBr + H2O. If you start with ten grams of lithium hydroxide, how many grams of lithium bromide will be produced?
• How many moles of nitrogen dioxide are produced from 4.754 mol NO? Given the equation: NO(g) + O2(g) --> NO2(g).
• Given the equation: 2C8 H18 + 25 O2 --> 16 CO2 + 18 H2O, what is the volume of 02 with 49.5 g of H20?
• What are some real life uses of stoichiometry?
• Given the equation:#N_2+3H_2 rarr 2NH_3#, what volume of #NH_3# at STP is produced if 25 grams of #N_2# is reacted with an excess of #H_2#?
• Why is a balanced chemical equation necessary to solve a stoichiometry problem?
• Assuming that gasoline is C8H18 and has a density of 0.703 g/ml, how many liters of CO2 will be produced from the consumption of 1.8 gallons of gasoline at standard conditions ?
• How many grams of chlorine can be liberated from the decomposition of 64.0g of AuCl3 by the following reaction: 2 AuCl3 --> 2 Au + 3Cl2?
• Assuming gasoline is 100% isooctane, with a density of 0.692 g/mL, what mass of carbon dioxide is produced by the combustion of 1.2 x 1010 gal of gasoline?
• Given the equation: CuCl2 + 2 NaNO3--> 2 Cu(NO3)2 + 2 NaCl, what is the limiting reagent if 15g of CuCl2 react with 20g of NaNO3?
• How many liters of water can be made from 55 grams of oxygen gas and an excess of hydrogen at a pressure of 12.4 atm and a temperature of 85C?
• 30.5 g of sodium metal reacts with a solution of excess lithium bromide. How many grams of lithium metal are produced?
• How many grams of water are produced when propane (C3H8) burns with 12.0 L of oxygen at STP?
• How many grams of cobalt must react with an excess volume of hydrochloric acid to produce 25.0 mL of hydrogen gas?
• Suppose a sample of air contains 23.0% oxygen by mass. How many grams of air are required to complete the combustion of 93.0 g of P to diphosphorus pentoxide?
• Given the reaction:Na2S2O3(aq) + 4Cl2(g) + 5H2O(aq) --> 2NaHSO4(aq) + 8HCl(aq), how many moles of Na2S2O3 are needed to react with 0.12mol of Cl2?
• How much ammonia (NH3) can be obtained when 3.0g H2 reacts with 100.g N2?
• How much ammonia (NH3) can be obtained when 3.0g H2 reacts with 100g N2?
• Given the equation: Cu + AgNO3 --> Ag + CuNO3, what mass of silver in grams is precipitated when 40.0 g of copper reacts with an excess of silver nitrate in solution?
• How would you solve gas laws problems with the given "at STP"?
• Given the equation: Pb(SO4)2 + 4 LiNO3 --> Pb(NO3)4 + 2 Li2SO4, how many grams of lithium nitrate will be needed to make 250 grams of lithium sulfate, assuming that you have an adequate amount of lead (IV) sulfate to do the reaction? Thanks lots.?
• How would you calculate the maximum number of grams of CaCl2 that could be produced from 74g of Ca(OH)2 in the following reaction: 2HCl + Ca(OH)2 --> 2H2O + CaCl2?
• How would you write a balanced equation for the combustion of octane, C8H18 with oxygen to obtain carbon dioxide and water?
• How would you determine the percent yield for the reaction between 15.8g of NH3 and excess oxygen to produce 21.8g of NO gas and water?
• How many moles of chlorine gas (Cl2) would react with 5 moles of sodium (Na) according to the following chemical equation: Na + Cl2 --> NaCl?
• Question #ccabf
• Question #bfee9
• How many milliliters of 0.200M #NaOH# solution are needed to react with 22.0 mL of a 0.490 M #NiCl_2# solution?
• A #10*g# mass of aluminum reacts with a #19*g# mass of oxygen gas. Which is the reagent in deficiency?
• How many grams of #O_2# are needed to react with #84.5# g of #NH_3#?
• How many moles of #CO_2# are formed from #.5# mole of #C_8H_18# with ample #O_2#?
• If #"0.5 mol BaCl"_2"# reacts with #"0.2 mol Na"_3"PO"_4"#, what is the maximum amount of #"Ba"_3"(PO"_4)_2"# that can be produced?
• In the complete reaction of 22.99 g of sodium with 35,45 g of chloride, what mass of sodium chloride is formed?
• How many grams of NaF form when 25.7g of HF reacts with excess sodium silicate?
• Question #89228
• While you cook on your gas grill, 3.7 grams of #CO_2# are produced. How many moles of propane, #C_3H_8# are used, using the equation #C_3H_8+5O_2 -> 3CO_2+4H_2O#?
• Question #e21bc
• In the equation #Mg(s) + 2HCl(aq) -> MgCL_2(aq) + H_2(g)#, what mass of hydrogen will be obtained if #100# #cm^3# of 2.00 mol #dm^-3# #HCl# are added to 4.86 g of magnesium?
• Solid iron reacts with sulfuric acid to produce iron (ll) sulfate and hydrogen gas. If 655 mL gas are collected at STP, how many grams of iron (II) sulfate are also produced?
• What volume of 0.365 N lithium hydroxide is needed to completely neutralize 27.68 mL of 0.559 N nitric acid?
• Question #eee2a
• How many grams of #N_2# are required to completely react with 3.03 grams of #H_2# for the equation #N_2 + 3H_2 -> 2NH_3#?
• Question #ea867
• What mass of cobalt can be extracted from 85.0g of cobalt (Ill) heptahydrate?
• In the equation #2C_2H_2(5) + 5O_2(5) -> 4CO_2(g) + 2H_2O(g)#, how many grams of oxygen gas are needed for the complete combustion of #1.8 * 10^2# #g# of acetylene?
• 17.2 grams #MgO# are produced according to the following equation: #2Mg + O_2 -> 2MgO#. How many grams of oxygen #O_2# must have been consumed?
• Based on the following equation: #2 Al + 3 CuCl_2 -> 2AlCl_3 + 3 Cu#. lf 10.53 grams of #CuCl_2# were reacted, how many grams of #AlCl_3# will be produced?
• When 7.25 g of #Al# reacts with excess #H_2SO_4# in the reaction #2Al (s) + 3 H_2SO_4 (aq) -> Al_2(SO_4)_3(aq) + 3H_2(g)# how many liters of #H_2# is formed at 25° C and a pressure of 1.650 atm?
• Question #824f3
• How many grams of #NH_3# can be produced from the reaction of 28 g of #N_2# and 25 g of #H_2#?
• What mass of #KC_2H_3O_2# is produced when 10.0 L #CO_2# is produced from potassium carbonate and excess acetic acid?
• How many grams of #K_2CO_3# are needed in order to produce 2.0 mol #K_2O#?
• Zinc oxide reacts with hydrochloric acid to produce zinc chloride and dihydrogen monoxide. If 3.6 moles of zinc oxide reacts with an excess of hydrochloric acid, then how many grams of zinc chloride were produced?
• How many grams of water can be prepared from 10.10 grams of hydrogen gas and excess oxygen gas at standard conditions?
• Question #761b8
• Aluminum metal reacts with a solution of copper (II) nitrate. If you want to produce #5.4 * 10^24# atoms of copper, how many moles of aluminum metal are needed?
• A mass of 45.0 grams of aluminum will react with how many grams of zinc chloride?
• In the reaction #2Na+Cl_2 -> 2NaCl#, how many moles of #Cl_2# react with 100 moles of sodium to form sodium chloride?
• How many moles of #Al# are needed to react completely with 1.2 mol #FeO# in the reaction #2Al + 3FeO -> 3Fe + Al_2O_3#?
• Hm many grams of #CO_2# would be formed from 30 grams of #C_7H_8# in the following reaction #C_7H_8 + O_2 -> CO_2 + H_2O#?
• How many grams are there in #1.18 * 10^26# atoms of iridium?
• How many grams of carbon dioxide are produced when 2.50 g of sodium hydrogen carbonate react with excess citric acid according to the equation #3NaHCO_3+H_3C_6H_5O_7->Na_3C_6H_5O_7 + 3CO_2 + 3H_2O#?
• Space vehicles use solid lithium hydroxide to remove exhaled carbon dioxide according to the equation: #2LiOH+CO_2 ->Li_2CO_3+H_2O#. What is the mass of carbon dioxide removed if the space vehicle carries 42.0 mol #LiOH#?
• Question #78c76
• An #NaOH# solution contains 1.90 mol of #NaOH#, and its concentration is 0.555 M. What is its volume?
• For the reaction #C+2H_2 -> CH_4#, how many grams of hydrogen are required to produce 0.6 moles of methane, #CH_4#?
• Question #836da
• How to calculate the volume of hydrogen which generates from 2g of sodium?
• Question #45702
• Recall that liquid sodium reacts with chlorine gas to produce sodium chloride. You want to produce 581 g of sodium chloride. How many grams of sodium are needed?
• In the equation #Mg + 2HCl -> MgCl_2 + H_2#, what volume of hydrogen at STP is produced from the reaction of 50.0 g of #Mg# and the equivalent of 75 g of #HCl#?
• How many moles of rust #(Fe_2O_3)# will be formed by the rusting of 25.0 grams of iron (#Fe#)?
• Given the reaction #2Al + 3Cl_2 -> 2AlCl_3#, how many grams of #Al# are needed to produce 90.50 grams of #AlCl_3#, if we have an unlimited supply of #Cl_2#?
• How many grams of #AlCl_3# can be produced by reacting 80.0 grams of #Cl_2# with an unlimited supply of #Al#?
• How many atoms are present in 21.59 g of #C_6H_12O_6#?
• How many oxygen atoms are in #Al_2(SO_4)_3#?
• How many nitrogen atoms are in #Ca(NO_3)_2#?
• How many atoms are in 0.40 mol of sulfur?
• What is the mass in grams of .50 mol of carbon?
• What is the mass in grams of 1.80 mol of calcium?
• If a #21*g# mass of calcium hydride is reacted with excess water, (i) what mass of calcium hydroxide will result; and (ii) what volume of dihydrogen will be evolved at #"STP"#?
• Question #ef8fc
• How many grams of #(NH_4)_2SO_4# are present in .100 moles of #(NH_4)_2SO_4# ?
• How many grams of #Ag# can be formed from 5.50 grams of #Ag_2O# in the equation: #2Ag_2O (s) -> 4Ag (s) + O_2 (g)#?
• If I start with 25.0 grams of lead (II) nitrate and 15.0 grams of sodium iodide, how many grams of sodium nitrate can be formed?
• How do you convert #1.75 * 10^26# atoms of potassium to moles?
• 21.10 grams of magnesium react with excess sulfuric acid. How many liters of hydrogen are produced?
• What mass of iron is formed when 21.35 liters of aluminum react with iron (II) sulfate?
• How many grams of sulfur are needed to produce 1.40 moles of sodium sulfide?
• Question #b0afa
• How many molecules are in 6.0 moles of #NO_2#?
• When propane #C_3H_8# reacts with oxygen, carbon dioxide and water are produced. If 7.51 grams of propane react with excess oxygen, how many grams of carbon dioxide are formed?
• In the reaction #2NaOH+H_2SO_4 -> 2H_2O+Na_2SO_4#, how many grams of sodium sulfate will be formed if you start with 200.0 grams of sodium hydroxide and you have an excess of sulfuric acid?
• How do you change 5.20 molecules of #C_3H_6O_2# to grams?
• The combustion of butane, #C_4H_10#, produces carbon dioxide water. When one sample of butane was burned, 4.46 grams of water was formed. How many grams of oxygen gas were consumed?
• What mass of aluminum is required if 40.0 grams of iron (III) oxide is to be completely consumed in the reaction #Fe_2O_3(s) + 2Al(s) -> 2Fe(l) + Al_2O_3(s)#?
• What mass of oxygen is needed for the complete combustion of #8.90 * 10^-3# #g# of methane?
• Elemental sulfur occurs as octatomic molecules, #S_8#. What mass (g) of fluorine gas is needed to react completely with 17.8 grams of sulfur to form sulfur hexafluoride?
• How many moles of #S# are in 125 g of #SO_2#?
• What mass of water, #H_2O#, can be produced from 150 grams of ammonia, #NH_3#?
• What mass of carbon dioxide is produced from the complete combustion of #8.50*10^-3# #g# of methane?
• In the equation #2KClO_3 -> 2KCl + 3O_2#, if 5.0 g of #KClO_3# is decomposed, what volume of #O_2# is produced at STP?
• In the reaction #CaC_2(s) + 2H_2O(l) -> C_2H_2(g) + Ca(OH)_2(aq)#, if 23 g of #CaC_2# are consumed in this reaction, how much #H_2O# is needed?
• What is the mass of .780 mol #Ca(CN)_2#?
• What is the mass of 7 mol #H_2O_2#?
• What is the mass of #3.21 * 10^-2# mol #Ni#?
• How many moles are in 15.5 g #SiO_2#?
• How many grams of #O_2(g)# are needed to completely burn #21.4# #g# of #C_3H_8(g)# in the reaction #C_3H_8(g) + 5O_2(g) -> 3CO_2(g) + 4H_2O(g)#?
• Question #d35e5
• How many grams of #Al_2O_3# would form if 12.5 moles of #Al# burned?
• How many moles of iron, #Fe#, can be made from #Fe_2O_3# by the use of 18 moles of carbon monoxide, #CO# in the reaction #Fe_2O_3 + CO -> Fe+CO_2#?
• What is the total number of nitrogen atoms in 0.25 mole of #NO_2# gas?
• How many grams of #H_2# are needed to produce 11.27 g of #NH_3#?
• Question #0bb3d
• If 5.49 mol of ethane (#C_2H_6#) undergoes combustion according to the unbalanced equation #C_2H_6+O_2->CO_2+H_2O#, how much oxygen is required?
• How many grams of #H_2# are needed to produce 13.68g of #NH_3#?
• How many grams of silver chloride are produced from 5.0 g of silver nitrate reacting with an excess of barium chloride in the reaction #2AgNO_3 + BaCl_2 -> 2AgCl + Ba(NO_3)_2#?
• How many grams of hydrogen are necessary to react completely with 50.0 g of nitrogen in the reaction #N_2+3H_2->2NH_3#?
• How many grams of potassium chloride are produced if 25 g of potassium chlorate decompose in the reaction #2KClO_3 -> 2KCl + 3O_2#?
• Question #7ee1d
• How many grams of oxygen can be produced by completely decomposing 10 g of mercury(II) oxide?
• In the reaction #4Fe + 3O_2 -> 2Fe_2O_3#, how many grams of #Fe_2O_3# are produced from #73.2g# #Fe#?
• How many grams of water will be needed to produce 1.5 moles of acetylene gas?
• How many moles of #N_2# are produced by the decomposition of 1.25 mol of sodium azide in the reaction #2NaN_3(s) -> 2Na(s) + 3N_2(g)#?
• How many moles of oxygen are produced by the decomposition of six moles of potassium chlorate in the reaction #2KClO_3 -> 2KCl + 3O_2#?
• How many moles of oxygen gas will be formed from 6.45 g of potassium chlorate?
• Question #f34d1
• In the reaction #N_2 + 3O_2 -> 2NO_3#, how many grams of #N_2# are required to produce 10 grams of #NO_3#?
• How many molecules of chlorine gas would be produced if 10.0g of aluminum chloride decomposed into aluminum precipitate and chlorine gas?
• If 507 g #FeCl_2# were used up in the reaction #FeCl_2 + 2NaOH -> Fe(OH)_2(s) + 2NaCl#, how many grams of #Fe(OH)_2# would be formed?
• What is the mass of #Cu_2S# formed if 64 g of #S# are used in the reaction #2Cu + S -> Cu_2S#?
• What is the mass of copper produced if 4.87 g of #Al# reacts with copper sulfate in the reaction #2Al + 3CuSO_4 -> Al_2(SO_4)_3 + 3Cu#?
• When steam (hot water) is passed over iron, hydrogen gas and iron (lll) oxide are formed. What mass of steam would be needed to react completely with 100.0 g of iron?
• How many molecules of #O_2# are required for the complete combustion of 23.0 grams of hexane in the reaction #C_6H_14 + O_2 -> CO_2 + H_2O#?
• If 29.4 grams of hydrogen and 3701.3 grams of iodine combine to form hydrogen iodide, how many grams of hydrogen iodide must form?
• How many grams of oxygen are produced by the decomposition of 1 mole of potassium chlorate, #KClO_3# in the reaction #2KClO_3->2KCl+3O_2#?
• Calcium hydride reacts with water to form calcium hydroxide and hydrogen gas. How many grams of calcium hydride are needed to form 8.5 grams of hydrogen?
• Calcium hydride combines with water according to the equation: #CaH_2(s) + 2H_2O(ℓ) -> 2H_2(g) + Ca(OH)_2(s)#? Beginning with with 84.0 g of #CaH_2(s)# and 36.0 g of #H_2O#, what volume of #H_2# will be produced at 273 K and a pressure of 1520 torr?
• Question #0d5eb
• In aqueous solution, what methathesis reaction occurs between lead nitrate, and lithium sulfate?
• How many liters of a .500M #H_2SO_4# must react with excess #Cu# to produce 15.0 g #CuSO_4#?
• Question #176ac
• What is the mass of water produced when 9.33 g of butane reacts with excess oxygen?
• The fuel methanol (#CH_3OH#) is made by the reaction of carbon monoxide and hydrogen. What is the balanced chemical equation? How many grams of hydrogen are needed to produce 45.0 grams of methanol?
• If 3.00 mol of #CaCO_3# undergo decomposition from #CaO# and #CO_2# how many grams of #CO_2# are produced?
• If 5.04 grams of iron (II) nitrate reacts with an excess of #H_2S#, what mass of iron(II) sulfide will be produced in the reaction #Fe(NO_3)_2 + H_2S -> FeS + H(NO_3)#?
• In an experiment, 2.54 grams of copper completely reacts with sulfur, producing 3.18 grams of copper(I) sulfide. What is the total mass of the sulfur consumed?
• C7H12 reacts with O2 to produce CO2 and H2O. Suppose 348 g of CO2 are produced in this reaction. What mass of O2 reacted?
• Question #30d07
• How many moles of oxygen are required to completely react with 16.1 grams of magnesium metal according to the equation: 2 Mg(s) + O2(g) → 2 MgO(s) ?
• Question #4c71e
• Question #92995
• What mass of carbon dioxide will be produced by #"15.6 g C"# if oxygen gas is in excess? #"C + O"_2"##rarr##"CO"_2"#
• What is the difference between the solubility of lead salts versus lithium salts...specifically their nitrate salts?
• Question #35550
• Ammonia and oxygen produce nitrogen dioxide and water. What volume of nitrogen dioxide gas will be produced if 30.5 grams of ammonia is reacted with excess oxygen?
• Question #a5001
• Iron is obtained commercially by the reaction of hematite #Fe_2O_3# with carbon monoxide. How many grams of iron is produced when 25.0 mol of hematite reacts with 30.0 mol of carbon monoxide?
• Question #472ec
• Question #3bfae
• Question #e801e
• How many moles of sodium hydroxide will be produced from the complete reaction of 15.0 g sodium in the reaction #2Na + 2H_2O -> 2NaOH + H_2#?
• How many moles of iron(Ill) sulfide, #Fe_2S_3#, would be produced from the complete reaction of 449g iron(III) bromide in the reaction #2FeBr_3 + 3Na_2S -> Fe_2S_3 + 6NaBr#?
• How many grams of aluminum are required to produce 8.70 moles of aluminum chloride in the reaction #2Al + 3Cl_2 -> 2AlCl_3#?
• How many grams of methane are produced from the complete reaction of 5.15 moles of carbon monoxide in the reaction #CO + 3H_2 -> H_2O + CH_4#?
• How many grams of diphosphorus trioxide, #P_2O3#, are required to produce 10.2 moles of phosphorous acid, #H_3PO_3# in the reaction #P_2O_3 + 3H_2O -> 2H_3PO_3#?
• How many moles of barium hydroxide, #Ba(OH)_2# would be required to react with 117g hydrogen bromide, #HBr# in the reaction #2HBr + Ba(OH)_2 -> BaBr_2 + 2H_2O#?
• Question #186eb
• Question #06eb8
• How many moles of sodium nitrate, #NaNO_3#, would be produced from the complete reaction of 253g sodium chromate, #Na_2CrO_4#?
• If 2.112 g of #Fe_2O_3# reacts with 0.687 g of #Al#, how much pure #Fe# will be produced in the reaction #Fe_2O_3(s) + 2Al(s) -> Al_2O_3(s) + 2Fe(s)#?
• Question #bd857
• How would we write the equation between #Na_3PO_4# and #Pb(NO_3)_2#, given #17.3*g# of the former, and #12.4*g# of the latter?
• How many molecules of oxygen are required to react with 174 g of carbon monoxide in the reaction #CO + O_2 -> CO_2#?
• If you start with 5.5 grams of sodium fluoride, how many grams of magnesium fluoride will be produced in the reaction #Mg + 2NaF -> MgF_2 + 2Na#?
• Question #64d6d
• What volume of 3.05 M #HCl(aq)# will react with 25.0 g #Zn(s)# in the reaction #Zn(s) + 2HCl(aq) -> ZnCl_2(aq) + H_2(g)#?
• In the reaction #Fe_2O_3 + 3CO -> 2Fe + 3CO_2#, what is the total number of moles of #CO# used to produce 112 grams of iron?
• What is the mass of mercury that can be prepared from 1.40 g of cobalt metal in the reaction #Co(s) + HgCl_2(aq) -> CoCl_3(aq) + Hg(l)#?
• Coal is made of 82,2% carbon, 4,6% hydrogen, 1% sulphur and the rest is incombustible. We know that 21% of air is oxygen. Calculate what volume of air will we need to burn 1 tone of this coal?
• #"Sodium azide"#, #NaN_3#, is used in air-bags as a source of dinitrogen...?
• A chemist performs the synthesis of sodium chloride from its elements. The chemist begins with 46 grams of sodium. How many moles of chlorine are needed? 2 Na + Cl2 → 2 NaCl
• What mass of calcium chromate is formed when 35 grams of calcium nitrate reacts with sodium carbonate?
• Question #975d6
• What mass of #SbCl_3# can be produced from the reaction of 3.570 L of chlorine at STP reacting with an excess of antimony in the reaction #Sb+Cl_2 -> SbCl_3#?
• Question #dc69a
• What redox reactions occur in an iron foundry?
• How many grams of carbon dioxide are produced when #"83.7 g"# of carbon monoxide react with excess iron(II) oxide?
• In terms of the oxygen atom, how many oxygen atoms are associated with a #49.0*g# mass of #"sulfuric acid"#?
• How many grams of #H_2O# will be produced if 750 grams of #Fe# are produced in the equation #Fe_3O_4 + H_2 -> Fe + H_2O#?
• 20.0 g of calcium carbonate is heated to produce carbon dioxide according to the equation CaCO3(s) → CaO(s) + CO2(g)?
• What mass of aluminum chloride could theoretically be made from 8.1 g of aluminum and excess chlorine?
• What mass of potassium hydroxide is required to react completely with 2.70 g of sulfuric acid to produce potassium sulfate and water?
• The combination of coke and steam produces a mixture called coal gas, which can be used as a fuel or as a starting material for other reactions. If we assume coke can be represented by graphite, the equation for the production of coal gas is?
• If 1.0 mole of methane reacts with oxygen to produce carbon dioxide and water, what mass of water is produced?
• Question #12be1
• How many milliliters of 2.00 M #H_2SO_4# will react with 28.0 g of #NaOH#?
• Question #6dd0a
• How much water is formed when 1.0 mol of #HCl# reacts completely with 1.0 mol of #NaOH#?
• Question #60166
• Question #86707
• A #3.6*g# mass of water was decomposed to give #3.2*g# dioxygen gas. What mass of dihydrogen gas was evolved?
• Question #2a7bc
• Iron (III) oxide reacts with carbon monoxide to form molten iron and carbon dioxide. If .18 g of iron (III) oxide reacts with 0.11 g of carbon monoxide, how many grams of iron would be produced?
• How many formula units of aluminum are required to produce 9.9 grams of hydrogen in #2Al + 3H_2SO_4 -> Al_2(SO_4)_3 + 3H_2#?
• How does stoichiometry operate in chemical reactions?
• How many grams of nitrogen are needed to produce 100 grams of ammonia gas?
• Question #d5e50
• Question #ca9c5
• Question #24ab3
• At STP, if 4.20L of #O_2# reacts with #N_2H_4#, how many liters of water vapor will be produced?
• Question #d94d5
• How do you convert 5.0g of nitrogen dioxide (#NO_2#) to grams of ozone gas (#O_3#)?
• Question #3bf98
• Question #72cbb
• How do we represent the decompositon of #C_3H_5(NO_3)_3#? And if #25.0*g# carbon dioxide were collected, what was the starting mass of the nitrate?
• What mass of water would result given complete combustion of a #44.0*g# mass of propane?
• How much oxygen gas can I make from a #9*kg# mass of water?
• How do you do mass to mass stoichiometry problems?
• How can you solve mass to mass stoichiometry problems?
• How many moles of carbon are produced when 1745 g of glucose decomposes?
• Question #d4a87
• How many moles of #NH_3# can be produced from 21.0 mol of #H_2# and excess #N_2#?
• Question #c15c8
• Using the equation #2H_2 + O_2 -> 2H_2O#, when 47g of oxygen are produced, how many grams of hydrogen must react?
• #H_2SO_4 + 2LiOH -> Li_2SO_4 + 2H_2O# What mass of water is produced from 10 g of sulfuric acid?
• Using the equation #N_2 + 3H_2 -> 2NH_3#, how many grams of hydrogen must react if the reaction needs 127 grams of #NH_3#?
• Using the equation #"N"_2 + 3"H"_2 -> 2"NH"_3#, if 28g #"N"_2# react, how many grams of #"NH"_3# will be produced?
• How many molecules of water will be produced if 52.6g of pentane are burned?
• #2Al + 3Cl_2 -> 2AlCl_3# How many grams of chlorine are required to produce 4 moles of aluminum chloride?
• Using the the equation #2Cu +O_2 -> 2CuO#, how many grams of copper must react if 3.18 moles of #CuO# are produced?
• #Zn(s) + 2HCl(aq) -> H_2 (g) + ZnCl_2(aq) + #heat energy. If 30.0 g of #Zn# react, how many grams of #H_2# will form?
• How many grams of carbon tetrafluoride, #CF_4#, are produced from the complete reaction of 1.46 moles of carbon in the reaction #C+2F_2 -> CF_4#?
• How liters of 1.5 M #HCl# solution would react completely with 25 moles #Ca(OH)_2#?
• What is the volume of #H_2# has formed at STP when 6.32g of #Al# reacts with excess #NaOH#?
• Question #f83f5
• Question #93ac1
• How do you draw propyne?
• Question #19f91
• Question #2c18b
• A piece of iron was placed in a silver nitrate solution. After the reaction iron's mass increased by 3.52g. How many moles of #"Fe"("NO"_3)_2# were produced?
• Why do we need to convert mass to moles in stoichiometry problems?
• On what law is stoichiometry based, and how do the calculations support this law?
• How many grams of carbon are needed to react completely with 75.2 g #SiO_2# according to the equation: #SiO_2(s) + 2C(s) -> Si(s) + 2CO(g)#?
• What mass of #Fe(OH)_3# is produced when 35 mL of 0.250 M #Fe(NO_3)_3# solution is mixed with 55 mL of a 0.180 M #KOH# solution?
• What mass of calcium carbonate could be collected, if a #90*g# mass of glucose is fermented, and the product gases are vented to a solution of EXCESS limewater?
• In the complete combustion of 454.0g of liquid butane (#C_4H_10#) what mass of water will be produced?
• Question #d9a4f
• What is the mass of 10 carbon dioxide molecules?
• Question #bc587
• Question #b019f
• Question #dd20a
• Question #09624
• How many grams of dihydrogen gas are required to produce a #10.53*g# mass of ammonia?
• How many grams of metal oxide could be produced from 7.461 g of magnesium?
• A quantity of #3.52xx10^24# water molecules represents what molar quantity?
• What mass of benzene is required for a combustion reaction that yields a mass of #42*g# with respect to carbon dioxide?
• To produce a mass of #279*g# mass of iron metal, what quantities of aluminum, and ferric oxide are required?
• Question #3fa48
• What mass of ammonia can be produced by the reaction of #"2.16 mol N"_2"# and excess #"H"_2"#?
• What is the order increasing boiling point for: #"A, butane; B. octane"# #"; C. heptane; D, propane; and E. pentane?"#
• Question #fd6e0
• What is the theoretical mass of copper (ii) carbonate if 0.565 g of copper (ii) sulfate reacts with 0.465 g of sodium carbonate?
• How many moles of iron in a #50*lb# mass of iron?
• Question #8fcbb
• What product would be if aluminium hydroxide reacts with lactic acid???
• Question #79474
• Decomposition of a #97.1*g# mass of potassium chlorate, #KClO_3#, yields what mass of dioxygen?
• How many grams of # CH_3OH# can be made from 23.12 g of #CO# and 8.323 of #H_2#?
• In a chemical reaction, exactly 2 mol of substance A react to produce exactly 3 mol of substance B. How many molecules of substance Bare produced when 28.3 g of substance A reacts? The molar mass of substance A is 26.5 g/mol.
• Question #4824d
• Question #cabe5
• Question #2cd41
• What does the carbon tetrachloride molecule, #"CCl"_4"# have the shape of?
• Question #05520
• Question #25124
• Question #22148
• What mass of water is associated with the complete combustion of a #9.80*g# mass of butane?
• What volume of #0.160*mol*L^-1# #"sulfuric acid"# is required to neutralize a #66.0*g# mass of #"sodium hydroxide"#?
• How many grams of #N_2# are produced from the reaction of 8.96 g of #H_2O_2# and 6.68 g of #N_2H_4#?
• Question #ecdef
• What mass of water results from combustion of an #8.0*mol# quantity of #"methane gas"#?
• Question #08af2
• Question #fcec8
• Question #8eb7d
• Question #75ab3
• Question #3a9f2
• Question #f171f
• How many moles of #"iron(Ill) sulfide"#, #Fe_2S_3#, would be produced from the complete reaction of #449*g# #"iron(III) bromide"# in the reaction #2FeBr_3 + 3Na_2S -> Fe_2S_3 + 6NaBr#?
• Question #a28c7
• Question #faf24
• A #21.3*g# mass of #"nitrous oxide"#, #N_2O#, is oxidized by dioxygen gas to #NO_2(g)#. How much dioxygen is required?
• Question #05d9b
• Question #3a5b1
• Question #0a72f
• How does aluminum react with ferric oxide?
• Question #e5006
• Question #fea87
• How much dioxygen is required to oxidize a #4*mol# quantity of aluminum metal?
• Question #dbc04
• Question #bb3e8
• Question #34a5f
• Question #4c5bc
• Question #c8da8
• Question #16a6f
• Question #2d18a
• What molar quantity of dihydrogen gas results from the oxidation of a #5.9*mol# quantity of aluminum metal?
• #10*g# of carbon disulfide is combusted with #15.5*L# of oxygen gas, which is the reagent in excess?
• A #37.5*g# mass of #"aluminum sulfate"# was obtained from the reaction between #AlBr_3# and #"potassium sulfate"#. What were the starting masses of the reactants?
• Question #c90a3
• What mass of carbon dioxide and sulfur dioxide result from oxidation of a #76*g# mass of carbon disulphide?
• Can you please help answer 7,8,9&10?
• Question #a6aa0
• Question #c2d3e
• How much dioxygen is required for the complete combustion of a #2.5*g# methane gas?
• How much iron metal can be produced from #40*g# #"ferric oxide"#?
• Question #08917
• What volume of oxygen is produced at STP when #6.58 times 10^24# molecules of water is decomposed?
• Question #f78be
• Question #1c600
• If 20 g of iron reacted with oxygen to form 20 g of iron(III) oxide, what is the percent of iron reacted?
• What results from the reaction of zinc metal, and hydrochloric acid?
• How does #"silver bromide"# react with #"sodium thiosulfate"#? What mass of sodium thiosulfate is required to react with a #0.22*g# mass of #"silver bromide"# to give the complex ion #Na_3[Ag(S_2O_3)_2]#?
• Question #027a8
• Question #066fe
• Hydrofluoric acid, HF(aq), cannot be stored in glass bottles because compounds called silicates in the glass are attacked by the HF(aq). Sodium silicate (Na2SiO3), for example, reacts as follows: Na2SiO3(s)+8HF(aq)→H2SiF6(aq)+2NaF(aq)+3H2O(l)?
• How many grams of salt are required to produce a #355*mg# mass of chlorine gas?
• Question #9c2ab
• Question #f8908
• Question #46410
• What mass of potassium dichromate is required to oxidize an #100*mL# volume of #Fe^(2+)# solution whose concentration is #0.10*mol*L^-1#?
• What mass of ammonium phosphate can prepared from a mass of #3.49*g# mass of phosphoric acid?
• Question #c270e
• Question #fdd52
• Question #ba0cd
• Question #e14b4
• What mass of sodium nitrate is required to give #128*g# of oxygen gas upon thermolysis of the salt?
• How many oxygen molecules are required to oxidize a #4.42*g# mass of sulfur?
• Question #5c303
• Question #789cd
• Question #fb8ba
• Why is citric acid added to soft drinks?
• According to the following reaction, how many grams of hydrogen peroxide (#H_2O_2#) are necessary to form 0.182 moles oxygen gas?
• Question #f25c6
• Question #6856d
• Question #c6feb
• Question #b830c
• How do we represent the formation of #FeS# by the redox reaction of iron and sulfur?
• If #15.86*g# of ammonia are reacted with excess nitric acid, what quantity of ammonium nitrate result?
• Question #8e971
• Question #afa55
• Question #6fe85
• #2LiOH(s)+CO_2(g) rarr Li_2CO_3(s) + H_2O(l)# What mass of carbon dioxide can be absorbed by a #1.30*kg# mass of lithium hydroxide, given the equation....?
• How do we represent the stoichiometric combustion of octane? How much carbon dioxide will result if #15.4*g# of octane are combusted?
• Question #88b4c
• Why is #"Avogadro's number"# used to count atoms and molecules?
• If at a certain temperature, #"6.8 g"# of #"NH"_3# completely decomposes to form #"H"_2(g)# and #"N"_2(g)#, how many mols of #"Al"(s)# would be needed to react with excess aqueous #"HCl"# to form the same amount of #"H"_2(g)#?
• How is aluminum oxidized under basic conditions? What is the reduction product?
• What mass of calcium hydride is obtained from a #5.0*g# mass of calcium metal?
• Question #03662
• Question #fd7ab
• Question #5a4c9
• Question #793e1
• Given that the saturated vapour pressure of water is #3.7831*kPa# at #301*K#, what is the molar quantity of a #32.11*mL# volume of oxygen gas collected OVER water at atmospheric pressure?
• Question #21b47
• If we combust #23.6*g# of methanol, how much water will be produced?
• Question #2a6da
• If a #49.9*g# mass of sodium hydroxide reacts with sulfuric acid, what mass of sodium sulfate results?
• Question #a5115
• How do I convert grams to moles to mole ratios? #"Mg" + "O"_2 -> "MgO"# 16.2g+10.67g=26.86g
• What reaction uses sun-light to produce simple sugars?
• What mass of salt can be isolated from a #75*g# mass of sodium metal, and a #25*g# mass of chlorine gas?
• How many milli grams of #"Fe"_0.9"O"# reacts completely with 10 mL 0.1 M KMnO4 solution in acidic conditions. (Fe = 56)? thanking you in anticipation.
• Given #200*g# masses each of sodium metal, and ferric oxide.....can you address..?
• How many phosphorus atoms in a #0.0750*mol# quantity of #"hydroxyapatite"#?
• Question #af4de
• How many moles of water can be produced when #"17.2 g B"_2"H"_6"# undergoes complete combustion?
• Question #5231b
• Question #55520
• Question #2cd6b
• 15g of copper(ii) chloride reacts with 20g of sodium nitrate. Calculate the mass of sodium chloride formed?
• When #3.36 x 10^4# liters of oxygen reacts with propane, how many molecules of water are produced?
• Question #7b9b5
• If 1.35 g of aluminum is mixed with 6.0 moles of copper (II) chloride, what mass of copper would be produced?
• An #8.8*g# mass of propane is completely combusted. What mass of carbon dioxide will result?
• How many grams of CO are needed to react wit an excess of #Fe_2O_3# to produce 209.7 g Fe?
• How do you define the word stoichiometry and where does the origin of this word come from?
• How does sodium azide, used in air-bags, decompose?
• How do you find the empirical formula of magnesium oxide, when magnesium ribbon is burned in a crucible...and a #0.91*g# of material is present?
• Question #e9d00
• Aluminum oxide is decomposed to extract pure aluminum from the mineral. If 6.7 tons of aluminum oxide is mined, calculate the mass of pure aluminum produced?
• How many particles of #KCIO_3# are needed to produce 8.14 grams of #O_2#?
• How many grams of CO are needed to to produce 442 grams of Fe? #1Fe_2O_3 + 3CO -> 3CO_2 + 2Fe#
• Question #6811e
• Question #776a4
• Question #4bd27
• Question #be783
• How would you make 250 ml of 0.150 M sodium thiosulfate from solid Na​2​S​2​O​3​ * 5H​2​O? (molar mass = 248.2 g/mole)
• If there is a #5*mol# quantity of #N_2#, how much dihydrogen is required to make ammonia?
• In an experiment, 1 mol of propane is burned to form carbon dioxide and water: #C_3H_8 + 5O_2 -> 3CO_2 + 4H_2O#. How many moles of oxygen are needed for the reaction?
• How do we represent stoichiometric reaction between strontium chloride, and sodium phosphate?
• Different groups have different masses; does this have any effect on the ratio?
• How many grams of aluminum are contained in 100.0 g of aluminum chloride, #AlCl_3#?
• If 6.5 grams of CO react, how many liters of #CO_2# are produce?
• For the reaction represented by the equation #Cl_2 + 2KBr -> 2KCl + Br_2#, how many grams of potassium chloride can be produced from 300. g each of chlorine and potassium bromide?
• About 60 million tonnes of calcium oxide is made in Britain each year. How would you calculate the mass of calcium carbonate needed to make this amount of calcium oxide?
• #2CO(g) + O_2(g) -> 2CO_2(g)#. How many liters of #O_2# will react with 74.2 liters of CO? If 6.5 g of CO react, how many liters of #CO_2# are produced?
• Question #0cf3d
• If #3.06*g# #"strontium chromate"# is added to #1/2*L# of water, what is the UNDISSOLVED mass of salt?
• What mass of #"potassium chloride"# would result from the redox reaction of #"potassium chlorate"#? How is the reaction represented stoichiometrically?
• What volume of #20%(w/w)# #"hydrochloric acid"# are need to oxidize a mass of #130*g# #"zinc metal"#?
• The vol of CO2 released when 6g of carbon combusrs completed ?
• What would occur if a #20*kg# block of magnesium metal were dropped in a #500*L# vat of conc. hydrochloric acid? What volume of dihydrogen gas would be generated?
• How much carbon dioxide is released when a #1*L# volume of octane is combusted?
• Question #5564b
• Water, H2O, is made via its formation reaction. How many moles of water form when (7.69x10^0) moles of oxygen gas react? (Answer in mol to 3 s.d. in proper scientific notation)
• How much magnesium metal is needed to prepare a #25*g# mass of magnesium oxide?
• What volume of carbon dioxide would evolve if....?
• Question #7a9ae
• Given a #0.450*g# mass of lead nitrate, what mass of sodium iodide is required to precipitate the metal as it iodide salt?
• Question #6f862
• Question #ae3df
• Question #7cee0
• Question #51377
• Question #0a663
• Question #5a225
• Which option contains the same number of chlorine atoms as present in a #142*g# mass of #Cl_2#?
• What occurs when a #190*mL# volume of barium nitrate at #0.105*mol*L^-1# concentration is mixed with #170*mL# volume of sodium sulfate at #0.100*mol*L^-1# concentration?
• Question #9e199
• How many moles of sodium peroxide are needed to produce 1.00 mol sodium hydroxide?
• How many grams of solid zinc metal will completely react with 100.0 mL of 0.0525 M HCl, if zinc chloride and hydrogen gas are the only products?
• How many liters of oxygen are required to react completely with 2.4 liters of hydrogen to form water?
• How many liters of oxygen are required to react completely with 2.4 liters of hydrogen to form water? #2H_2(g) + O_2(g) -> 2H_2O(g)#?
• GIven, #2NH_3(g)+2CH_4(g)+3O_2(g)rarr2HCN(g)+6H_2O(g)#... ...what mass of hydrocyanic acid would result from a #203.6*g# mass of ammonia?
• A mass of #55.9*g# of magnesium metal is reacted with an equimolar quantity of hydrochloric acid; what molar quantities of product are generated?
• Question #19845
• Question #7c266
• Question #be953
• Question #6ca13
• If #0.276*mol# silver chloride was collected from a reaction between silver nitrate and magnesium chloride, how many equiv magnesium nitrate were used?
• 2C31H64 + 63O2 --> 62CO2 + 64H2O Whatmass of water will be produced in the reaction? Mass before burning 0.72 g after burning 0.27 g
• What mass of water results from complete combustion of a #576*g# mass of propane?
• Question #add6d
• Anyone good at chemistry? please try this question for me.
• What is #"Avogadro's Number"#?
• How many liters of oxygen gas can be generated at 20.0 C and 0.998 atm by the decomposition of 12.6 g of water?
• How much iron can be prepared from a #1*kg# mass of #"ferric oxide"#?
• #8934*g# of oxygen gas is reacted with stoichiometric zinc sulfide. What mass of zinc oxide results?
• How is sodium borohydride similar to lithium aluminum hydride as a reducing agent? Could they be used interchangeably?
• How many grams of #NaClO# are produced when 80.0 grams of #O_2# are produced?
• What are 3 conversion factors used in stoichiometry?
• What mass of #"potassium sulfate"# would result from the reaction between excess #"sulfuric acid"# and #"potassium hydroxide"#?
• How much calcium bromide could be prepared given a mass of #25.0*g# with respect to the metal, and stoichiometric bromine?
• Question #4da79
• How do you find the maximum mass of aluminium that can react with 0.5 moles of HCI? 2Al + 6HCI - > 2Al2Cl3 + 3H2
• Question #4a0c4
• What mass of carbon dioxide results from complete combustion of a #32.0*g# mass of methane?
• Sodium and chlorine gas react to produce sodium chloride. If #"234 g"# of sodium chloride is produced, how much sodium reacted?
• Question #02722
• If 15 g of #C_2H_6# react with 45 g of #O_2#, how many grams of water will be produced?
• How many grams of potassium nitrate, #KNO_3#. are formed when 102 grams of nitric acid, #HNO_3#, react with potassium hydroxide #KOH#?
• Question #8697e
• Question #c9d76
• In this reaction 2Al+3/2O2 formed Al2O3 ,9 gm of Al will react with how many gm of O2?
• 4 gms of hydrogen are ignited with 4 gms of oxygen. the weight of water formed ?
• What mass of alumina will result if #14*mol# of aluminum metal are oxidized?
• A student needs to make #5.00xx10^1# mL of a potassium carbonate solution with a concentration of #3.3000xx10^(-2)# mol/L. What mass of potassium carbonate should they use to make the solution? (Answer to 3 s.d. in g)
• Question #9ca43
• Question #55f2f
• Question #6b9a2
• What amount of #Zn# will be required to produce #H_2# by its action on dilute #H_2SO_4# which will completely react with the oxygen, produced by heating #30g# of #KClO_3#?
• If 500,000g of limestone is heated up, what is the mass of CaO? CaCO3 = CaO + CO2
• What mass of carbon dioxide results from combustion of a #52*g# mass of acetylene gas?
• Question #a560b
• Question #315e6
• If #"38 g"# of lithium carbonate reacts with excess zinc sulfate, what mass of zinc carbonate can be produced?
• Help with these 4 questions?!
• What mass of ammonia is required to give a #264*g# mass of #"ammonium sulfate"#?
• What mass of dihydrogen gas results from the oxidation of #20*g# sodium metal by a mass of #10*g# of water?
• #2N_2H_4(l) + N_2O_4(l) -> 3N_2(g) + 4H_2O(l)#. If 10.81 g of #N_2H_4# is used, what mass of nitrogen is produced?
• Under certain conditions of temperature and pressure, hydrogen gas and nitrogen gas react to form ammonia gas. Determine the mass of ammonia produced if 3.50 moles of hydrogen has reacts with 5.00 moles of nitrogen gas?
• A #55*mL# volume of hydrochloric acid was poured on to an excess of magnesium turnings. What volume of dihydrogen gas evolved?
• What mass of precipitate should be obtained by the reaction between masses of #115*g# #AgNO_3(aq)# and #85*g# of #BaCl_2# where each of the components are dissolved in water?
• What is the mass percent of the sample that was actually #"Fe"_2"O"_3#? The unbalanced reaction was #Fe_2O_3(s) -> Fe_3O_4(s) + O_2(g)#
• The combustion of a gaseous alkane produces 7 L of carbon dioxide plus water vapour. If the original volume of alkane plus oxygen was 6 L, what is the formula of the alkane?
• Question #a465d
• What mass of zinc metal will be oxidized if #15.0*g# of #FeI_3# react to give iron metal?
• Question #ded6c
• Question #dde3d
• An anion-exchange column is lined with #"OH"^(-)#. A solution of #"MCl"_2# is passed through the column, and the result titrated to its equivalence point [ . . . ]. If #"2.375 g"# of #"MCl"_2# was originally dissolved, determine [ . . . ] #"M"#?
• What are the moles OR masses associated with: (i) #15.27*g*"lithium metal"#; (ii) #2.40*mol*"sulfur"#; (iii) #0.0141*mol# Ar; (iv) #88.0*mol*Mg#; (v) #2.29*g*"phosphorus"#; (vi) #11.9*mol*"chromium"#; (vii) #9.62*g;# (viii) #237.6 mol As#?
• Question #ad9a8
• Question #a48f7
• What do we mean by stoichiometry in chemical calculations?
• Question #13733
• How many grams of hydrogen are necessary to react completely with 2.3 moles of nitrogen, in the reaction N2+3H2 = 2NH3?
• Calculate how many moles of NH3 form when 3.55 moles of N2H4 completely react according to the equation: 3N2H4 (l) ---> 4NH3 (g) + N2 (g) ?
• Question #fe64c
• Question #b960d
• Question #a20b7
• Question #d8ba0
• Question #2a580
• Question #a396f
• Question #ad61a
• Question #7dd41
• Question #b0d55
• How many milliliters of 0.306 M HCl are needed to react with 51.0 g of CaCO3?
• How do ammonia and phosphoric acid react?
• Question #47e32
• Question #e3c64
• Question #f373b
• If we completely combust a #2.40xx10^-3*g# mass of methane, what is the mass of water evolved?
• How many grams of potassium chlorate decompose to potassium chloride and 797 mL of O2 at 128 degrees Celsius and 747 torr? 2KClO3 (s) = 2KCl (s) + 3O2 (g)
• Q.)(i) How many moles of sulphur will be produced when 2 moles of H2S reacts with 11.2L of SO2at NTP?
• A chemist reacted 0.05 moles of solid sodium with water to form sodium hydroxide solution. The chemical reaction for this is: Na+H2O = NaOH +H2 What mass of sodium was reacted?
• Calcium oxide is a base compound which can react with acids such as nitric acid, HNO3. A student mixed 1.5g of CaO with 2.5M HNO3. The chemical equation for this reaction is: CaO + HNO3 = Ca(NO3)2 + H2O. Solve the following questions?
• A chemist reacted 0.05 moles of solid sodium with water to form hydroxide solution. The chemical reaction for this is: Na + H2O = NaOH + H2. What mass of sodium was reacted?
• The balanced equation shows the reaction between aluminium hydroxide and hydrochloric acid to form aluminium chloride and water: Al(OH)3 + 3HCl = AlCl3 + 3H2O. 1 mole of aluminium chloride was formed, what mass of aluminium hydroxide was formed?
• Question #ff991
• In the chemical reaction #"C"_6"H"_6"OS" + "8O"_2"##rarr##"6CO"_2 + "3H"_2"O" + "SO"_2#, how many moles of #"C"_6"H"_6"OS"# are needed to react with #"317 g O"_2"#?
• Question #75890
• Question #8e899
• 100mL of 5mol L-1 nitric acid was added to excess copper. What mass of copper reacted? Cu +4HNO3 -> 2NO2 + Cu(NO3)2
• What is/are a practice problem(s) that involves the following topics? Concentration, limiting/excess reactants, acids/bases, solubility
• Question #60265
• If #50*g# of aluminum is oxidized, what mass of alumina will be recovered?
• Question #b79e7
• A mixture of hydrazine and hydrogen peroxide is used as a fuel for rocket engines. How many grams of hydrazine are needed to react with #0.453# moles of hydrogen peroxide?
• Question #f517b
• Carbon disulphide 'CS2' . Can be made from by product SO2. The overall reaction is 5C + 2SO2 -------> CS2 + 4CO How much CS2 can be produced from 450kg of waste SO2 with excess of coke if the SO2 conversion is 82%?
• Question #40326
• Iron can be extracted from iron(III) oxide by heating it with coke (carbon). The other product in the extraction reaction is carbon dioxide. What mass of iron is produced by reacting 550g of iron(III) oxide with 60g of coke?
• Lithium metal will react readily with sulfuric acid. Which of the following is correct statement about the quantities of each reactant needed to produce the maximum amount of products without any reactant remaining?
• Question #7da6e
• Question #cad1e
• What is quicklime? And what occurs when a #10*g# mass of this material reacts with the carbon dioxide liberated from the decomposition of #1.80*g# of glucose?
• What volume of hydrogen gas is produced when #"6 g"# of magnesium reacts?
• Question #7e89d
• Question #2976c
• The mass of. Carbon anode consumed in the production of 270kg Al metal from bauxite by hall process giving only carbon dioxide?
• Question #22b90
• If #171*g# #Ba(OH)_2# are reacted with #294*g# of #H_2SO_4#, which is the reagent in excess? How much #"barium sulfate"# will be deposited?
• Question #05456
• When #"11.6 g"# of citric acid reacts with excess sodium bicarbonate, what mass of #"CO"_2# is made in #"g"#? #MW = "44 g/mol"#
• Calcium oxide, CaO, is a base compound which can react with certain types of acids. A student mixed 1.5g of CaO with 2.5M HNO3. The chemical equation for this reaction is: CaO + HNO3 → Ca(NO3)2 + H2O?
• A #5.00*g# mass of #"sodium bicarbonate"# requires WHAT volume of #3.00*mol*L^-1# #HCl# for stoichiometric equivalence?
• Given a #20*g# mass of calcium carbonate, how much carbon dioxide will be generated, when it is added to a #100*mL# volume of #"20% w/w"# solution of #HCl(aq)#?
• Question #1286b
• Question #57b25
• How much of each substance do I need if I have #"100.0 g"# of iron?
• What mass of salt will be obtained when a #18.0*g# mass of sodium reacts with a #23.0*g# mass of chlorine gas?
• If 250g of sugar is completely fermented to ethanol, what is the theoretical yield of ethyl alcohol in: ?
• What mass of #"CO"_2"# will be produced when #"17.48 g CO"# reacts with excess #"O"_2"#?
• What mass of lithium carbonate will result, if #87.2*g# of #LiOH# is treated with excess carbon dioxide?
• Rust is a reddish brown solid with the chemical formula Fe2O3 · nH2O. To determine the number of molecules of water of crystallization in a formula unit of a rust sample, 40.0 cm3 of 1.5M hydrochloric acid was added to 1.89 g of.... (Details below)?
• How do we solve numerical chemistry problems?
• Find the maximum amount of ozone(O3) by removing all of its oxygen atomes?
• What mass of water will be produce if #11.6*mg# of butane are completely combusted?
• When do I use the molar mass of diatomic oxygen instead of atomic oxygen in stoichiometry problems?
• If mass % of Oxygen in a monovalent metal carbonate is 48. Then find the number of atoms of metal present in 5mg of this metal carbonate sample?#( N_a = 6.022 * 10^23)#
• The combustion of glucose #"C"_6"H"_12"O"_6# produces carbon dioxide and water. What mass of glucose will produce 44 g of carbon dioxide?
• Can you represent the oxidation of #"1-butylene"#?
• Question #319d5
• Given a #3.00*g# mass of sodium metal, what mass of chlorine gas is equivalent? What mass of sodium chloride could be made given this quantity?
• What mass of sodium metal is required to make a mass of #936*g# sodium chloride?
• What molar quantity of carbon monoxide is required to reduce a #160*g# mass of #Fe_2O_3#?
• Question #99fa3
• Question #a40ec
• Question #80f53
• Question #8c029
• NASA used canisters filled with lithium hydroxide to remove carbon dioxide inside the space shuttles. The chemical equation for the reaction is: #"2LiOH(s)+CO"_2("g")"##rarr##"Li"_2"CO"_3("s")+"H"_2"O(g)"# ?
• Question #3d9fc
• One liter of sulfur vapor, S8(g) , at 600 ˚ C and 1.00 atm is burned in excess pure O2 to give SO2, measured at the same temperature and pressure. What mass of SO2 gas is obtained?
• Question #ecab8
• Question #badeb
• Question #e91cf
• What is the difference between a stoichiometry problem that has moles or one that has molecules?
• Question #f1d6d
• Question #f8f5c
• Question #a19b3
• What is the number of moles of hydrochloric acid that will be neutralized if there are 750 mg of aluminum hydroxide are consumed? What is the mass of water that will be produced?
• Question #8d45c
• Question #bd124
• If you start with ten grams of sodium hydroxide, how many moles of sodium chloride will be produced?
• If 15 moles of water was made in this reaction, how many grams of carbon dioxide were made? #H_2CO_3rarrH_2O+CO_2#
• 1)how many grams of C6H5CO2H are produced from 8.00 x 10^25 atoms of oxygen? 2)If 2.6g of C6H5CH3 and 3.2g of O2 are allowed to react which will be limiting? 3)how many moles of C6H5CO2H will be formed(theoretical yield)?
• Question #0aff1
• What is the theoretical yield (in grams) of Fe(OH)3 in the reaction below when 5.00 mL of 0.150 M FeCl3 are reacted with 6.00 mL of 0.200 M NaOH?
• How many grams of sodium do you need to produce 18g of sodium chloride?
• With the Equation 6H2O + 6CO2 --> C6H12O6 + 6O2 How many grams of water are needed to make the above amount of glucose if you start with 88.0g of CO2?
• 6H2O + 6CO2 --> C6H12O6 + 6O2 How many grams of Glucose are made if you start with 88.0g of CO2?
• How many grams of silver chloride can be produced if you start with #"4.62 g"# of barium chloride?
• If #11# grams of carbon dioxide is produced, how much methane, #"CH"_4#, must have reacted initially in moles?
• Zn + 2HCl → ZnCl2 + H2 How many moles of hydrogen are produced from the reaction of three moles of zinc with an excess of hydrochloric acid?
• 6 Li + Ca3(BO3)2 ---> 3 Ca + 2 Li3BO3 How many grams of calcium metal would be produced if you started the reaction with 10 grams of calcium borate?
• The combustion of propane...?