Percent Yield

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Questions

• Question #e2e62
• Question #fee2e
• Question #fee32
• Question #19e89
• Question #c5bdc
• Question #a1065
• What would be the limiting reagent if 26.0 grams of C3H9N were reacted with 46.3 grams of O2? 4C3H9N+25O2=>12CO2+18H2O+4NO2
• Is percent yield always less than 100?
• What would be the limiting reagent if 41.9 grams of C2H3OF were reacted with 61.0 grams of O2? C2H3OF+2O2=>2CO2+H2O+HF
• What is the percent yield of the following reaction if 60 grams of CaCO3 is heated to give 15 grams of CaO? CaCO3→CaO + CO2
• How can I find the percentage yield?
• How can I find the actual yield?
• How can I find the limiting reagent?
• Why is percent yield important to know for a chemical reaction?
• Convert the mass of your limiting reactant to a number of moles.
• Why is a percent yield important in chemistry?
• What is the percent yield equation?
• If the reaction of 0.112 grams of H2 produces 0.745 grams of H2O, what is the percent yield? Fe3O4+4H2=>3Fe+4H2O
• What does percent yield mean in chemistry?
• If the reaction of 77.0 grams of CaCN2 produces 27.1 grams of NH3, what is the percent yield? CaCN2+3H2O=>CaCO3+2NH3
• How can I calculate the percent yield of aspirin synthesis?
• How does impurities affect percent yield?
• How do you calculate the percent yield of recrystallized product?
• If the reaction of 91.3 grams of C3H6 produces a 81.3% yield, how many grams of CO2 would be produced? 2C3H6+9O2=>6CO2+6H2O
• If the reaction of 20.7 grams of CaCO3 produces 6.81 grams of CaO, what is the percent yield? CaCO3=>CaO+CO2
• How is the percent yield calculated?
• What are some common mistakes students make with percent yield?
• What are some examples of percent yield?
• What is an example of a percent yield practice problem?
• If the reaction of 40.8 grams of C6H6O3 produces a 39.0% yield, how many grams of H2O would be produced ? C6H6O3+6O2=>6CO2+3H2O
• Question #f8d64
• Question #abd9f
• Question #e99ad
• Question #fef55
• Question #a3d65
• A) How to calculate the theoretical yield of water resulting from the complete combustion of 1.60 g of methane b) When the reaction was run in the lab 3.30 g of water were formed. What is the percent yield of water for this run? CH4 + 2 O2 ->CO2 + 2 H2O?
• Question #a7d58
• Question #b8b2b
• Question #39a18
• Question #7d102
• Question #1efb5
• Question #6cd3c
• Question #8d1b2
• Question #6b14f
• Assuming that sodium bicarbonate is the limiting reactant, determine the percent yield of a reaction between 2.01 g of sodium bicarbonate and 24.6 mL of 1.5 M acetic acid? They produce 0.54 L of 20 degree C CO2 at 750 mmhg.
• Question #73cb1
• A compound containing #"36.5%"# of sulfur and #"63.5%"# of iron reacts with a compound containing #"27.6%"# oxygen and #"724%"# of iron. What is the balanced equation and the theoretical yield of iron oxide?
• If #"2300.0 g"# of #"Na"(s)# reacts in a sufficient amount of water, what is the theoretical yield of #"H"_2(g)# in grams?
• If the percent yield for the following reaction is 65.0%, how many grams of KClO3 are needed to produce 42.0 g of O2? 2 KClO3(s) → 2 KCl(s) + 3 O2(g)
• How do you calculate theoretical yield?
• In a double replacement reaction between silver nitrate and magnesium bromide. Calculate the mass of silver bromide which should be produced from 22.5g of silver nitrate. The actual yield was 22.0g, how do you calculate percent yield?
• Question #50852
• Question #d8778
• What occurs to the theoretical yield if a sample is incompletely dried? What occurs to the reported yield?
• Question #000a8
• Suppose 1.043 g of magnesium is heated in air. What is the theoretical amount of magnesium oxide that should be produced?
• What is the theoretical yield of #Li_3N# in grams when 12.5 g of Li ls heated with 34.1 g of #N_2#?
• Question #e4dc6
• What is the theoretical yield of solid product when 25.5 ml of 0.150 M lead (II) nitrate is mixed with 30.0 ml of 0.200 M NaOH?
• Question #94538
• What is the percent yield of #O_2# if 10.2 g of #O_2# is produced from the decomposition of 17.0 g of #H_2O#?
• Question #0988f
• Question #2b111
• How do the actual yield and the theoretical yield from a reaction compare?
• Question #051d8
• If 70.0g nitric acid reacts with 100.0g barium hydroxide what mass of salt may be obtained? If a student collects 138 g of this salt, what is the % yield?
• Question #16ddb
• What factors might cause a chemical reaction to produce more than a 100 percent yield?
• Nitric oxide, #"NO"#, is made from the oxidation of #"NH"_3# as follows: #4"NH"_3 + 5"O"_2-> 4"NO"+ 6 "H"_2"O"#. If #"9.6 g"# of #"NH"_3# gives #"12.0 g"# of #"NO"#, what is the percent yield of #"NO"#?
• What is the percent yield if 4.0 moles of #NaCl# are obtained when 5.0 moles of #NaOH# react with 6.0 moles of #HCl# in the reaction #NaOH + HCl -> NaCl + H_2O#?
• What is the theoretical yield and percent yield of #"AgCl"# if #"102.6996 g CsCl"# reacts with excess #"AgNO"_3"#? The actual yield of #"AgCl"# is #"77.938858 g"#.
• When ethane, #C_2H_6#, reacts with chlorine gas the main product is #C_2H_5Cl# but small amounts of #C_2H_4Cl_2# are produced. What is the percent yield of #C_2H_5Cl# if the reaction of 125g of ethane with 255g of chlorine gas produced 206g of #C2H_5Cl#?
• Question #5cfe2
• Methane and hydrogen sulfide form when 36g #H_2# reacts with carbon disulfide. What is the percent yield if the actual yield of #CH_4# is 69.8g?
• Question #5771d
• One mole of calcium carbide was treated with water, and #20.8*g# of gas were collected. What is the percentage yield?
• A student performs an experiment that produces 5.78 grams of silver chloride. He calculated that 7.25 grams of silver chloride should have precipitated if all of the limiting reactant reacted. What is his percent yield?
• Question #ddfaa
• When 60g of calcium carbonate is heated, 16.8g of Calcium oxide are formed. What is the percentage yield? (multiple choice)
• Coal gasification is a process that converts coal into methane gas. If this reaction has a percent yield of 85.0%, how much methane can be obtained from 1250 g of carbon?
• Question #83153
• If I start with 5 grams of #C_3H_8#, what is the theoretical yield of water in the equation #C_3H_8 + 5O_2 -> 3CO_2 + 4H_2O#?
• Sally and Sam reacted 20.0 mL of 1.0 M silver (I) chloride with metallic zinc in class. Sam and Sally collected 0.85 g of zinc chloride. What is the percent yield?
• What is my theoretical yield of sodium oxide if I start with 20 grams calcium oxide in the reaction #2NaCl + CaO -> CaCl_2 + Na_2O#?
• My theoretical yield of beryllium chloride was 10.7 grams in #Be + 2HCl -> BeCl_2 + H_2#. If my actual yield was 4.5 grams, what was my percent yield?
• Question #a465b
• Why do we have to balance equations with respect to mass?
• Question #1f048
• Question #f3b97
• Upon heating, calcium carbonate decomposes to produce calcium oxide and carbon dioxide. What is the theoretical yield of #CO_2# if 235.0 g #CaCO_3# is heated?
• Upon heating, calcium carbonate decomposes to produce calcium oxide and carbon dioxide. What is the percent yield of #CO_2# if 97.5 g #CO_2# is collected?
• Question #3b58a
• Question #c186f
• Question #5d6cd
• Question #60ac8
• Given the balanced equation, #LiOH + KCl -> LiCl + KOH#, what is the theoretical yield of lithium chloride if you start this reaction with 20.0 grams of lithium hydroxide?
• Question #e780b
• Question #8c92c
• The theoretical yield of a reaction is 82.5 grams, but the reaction actually yields 12.3 grams less than expected. What is the percent yield for this reaction?
• 24 g of carbon makes 14 g of carbon monoxide. What is the predicted yield and the percentage yield?
• Question #8a08c
• Question #9ae68
• If the theoretical yield of a reaction is .145 g and the actual yield is 0.104 g, what is the percent yield?
• At 273.15 K and 100kPa, 58.34 g of #"HCl"# reacts with 0.35 mol of #"MnO"_2# to produce #"7.056 dm"^3# of chlorine gas. Calculate the theoretical yield of chlorine. How do I solve this?
• Question #373a4
• How much iron metal will #160*g# of ferric oxide provide: #Fe_2O_3(s) + 3C(s) stackrel(Delta)rarr2Fe(s)+3CO(g)#?
• What mass of #TiCl_4# is needed to produce 25.0 g of #Ti# if the reaction proceeds with an 82% yield in the reaction #TiCl_4 + 2Mg -> Ti + 2MgCl_2#?
• A student sets up a reaction and calc a possible yield of 55.9 grams of silver. If the student performs the reaction and the mass of actual silver obtained is 42.5 grams. What is the percent yield?
• When 56.6 g of calcium is reacted with nitrogen gas, 32.4 g of calcium nitride is produced. What is the percent yield of calcium nitride in the reaction #3Ca(s) + N_2(g) -> Ca_3N_2(s)#?
• How do I test for the presence of hydrogen gas?
• What are discriminating tests for the presence of hydrogen gas, carbonate dianion, and zinc metal?
• What is the percent yield for the reaction between 15.8 g of #NH_3# and excess oxygen to produce 21.8 g of #NO# gas and water?
• What is the percent yield for the reaction between 45.9 g of #NaBr# and excess chlorine gas to produce 12.8 g of #NaCl# and an unknown quantity of bromine gas?
• If the recovered yield in a reaction was #25*g#, and the theoretical yield was #100*g# what issues would the chemical engineers address in the synthesis?
• What is the percent yield if 4.65 g of copper is produced when 1.87 g of aluminum reacts with an excess of copper(II) sulfate?
• Starting with 1.56 g of salicylic acid, a student prepares 1.75 g of aspirin. If the calculated mass of aspirin is 1.88 g, what is the percent yield?
• Question #2b66a
• Question #1e2a5
• How to determine the heat evolved or consumed by the reaction of 1.0 g SO2(g) with excess oxygen, with results from a Hess' Law Equation?
• Stoichiometry predicts that the yield of beryllium chloride is 10.7 grams. If my actual yield was 7.6 grams, what was my percent yield?
• How is percent yield calculated?
• Question #ea179
• Why is magnesium polished before it is ignited?
• If a reaction has an actual yield of 5 grams and a theoretical yield of 10 grams, what is the percent yield?
• For this reaction #Ti(s) +2F_2(g) -> TiF_4(s)#, what is the theoretical yield of the product, in grams, if you start with #4.8g Ti and 3.2g F_2# ?
• What is the percent yield if 50.0 g of Cr is formed from the reaction of 150.0 g of #Cr_2O_3# (MW = 152.0 amu) with excess Al?
• Question #14025
• What is the mass of ammonia formed if the reaction between 14 g of nitrogen and 12 g of ammonia gives a 70 % yield?
• A common laboratory preparation for small for quantities of #O_2# is to decompose #KClO_3# by heating: #2KClO_3 (s) -> 2KCl (s) + 3O_2 (g)#. If the decomposition of 2.00 g of #KCIO_3# gives 0.720 g of #O_2#, what is the percent yield for the reaction?
• Question #d3347
• Question #d2807
• Given the following, how many grams of water could be produced in this reaction? What is the limiting reactant? If 8.7 g of water are produced, what is the percent yield?
• Question #c429b
• Question #b2d74
• Question #e31e4
• For the reaction of ammonia with molecular oxygen, forming nitrogen monoxide and water. How do you calculate the theoretical yield of #NO# when 17.0g #NH_3# reacts with 16.0g #O_2#?
• Suppose a lab group reports a percent yield of 90% of salt, What is a possible explanation for the "missing" product?
• Combining 0.265 mol of #Fe_2O_3# with excess carbon produced 14.7 g of Fe. #Fe_2O_3 + 3C -> 2Fe +3CO.# What is the actual yield of iron in moles?
• Help with these questions about limiting reactants and yield?
• Question #697de
• What do we mean by #"quadrivalency"# in reference to carbon chemistry?
• An sodium metal salt is prepared from #3.0*g# metal and #2.0*g# of iodine. What is the MAXIMUM possible mass of #NaI# that can be prepared?
• What is my actual yield of uranium hexabromide if start with 100 grams of uranium and get a percent yield of 83%?
• Question #02ae1
• In the Haber process, #"30 L"# of #"H"_2# and #"30 L"# of #"N"_2# were used for a reaction which yielded only #50%# of the expected product. What will be the composition of gaseous mixture under these condition in the end?
• What reaction has occurred when a #250*g# mass of dihydrogen gas is a product?
• A reaction of #53.1 "g"# of #"Na"# and #35.7 "g"# of #"Br"_2# yields #40 "g"# of #"NaBr"#. What is the percentage yield?
• For the reaction,#2x#+#3y#+#4z## rarr## 5w# Initially if 1 mole of #x#,3 mole of #y# and 4 mole of #z# is taken and 1.25 mole of #w# is obtained then what is the % yield of this reaction?
• What possible reasons could be advanced that Jim recovered #82*g# of product that yielded #95*g#?
• How do we make a #5.0*L# volume of aqueous ammonia of #0.70*mol*L^-1# concentration, from conc. ammonia of #14.8*mol*L^-1# concentration?
• Question #748a3
• If the actual yield of #PBr_3# s found to be 22.3 g, how do you find the percent yield in this reaction?
• Question #39bd1
• Saccharomyces cerevisiae produces ethanol by fermentation. The theoretical yield of ethanol from 2.5 g of glucose is ______________ g ?
• Question #6e6f8
• Question #b447f
• Question #75d2f
• You began with 22 grams of nitrogen, and produced 19 grams of ammonia, #NH_3#, According to the the mass calculations, you should be able to produce 26 grams of ammonia. What is the percent yield? #N_2 + 3H_2 ->2NH_3#
• How to calculate theoretical yield of #CuCl_2 + Fe rarr Cu + FeCl_2#?
• What is the theoretical yield of acetylene when 2.38 g of calcium carbide reacts with excess water? What is the percentage yield if I obtained 0.77 g acetylene?
• Question #903d4
• Why does calcium carbonate undergo mass loss upon heating?
• In the neutralization of sulfuric acid with sodium hydroxide, the theoretical yield from 6.9g of sulfuric acid is 10g. In a synthesis, the actual yield is 7.2g. What is the percentage yield for this synthesis?
• For the reaction #"PCl"_3(g) + "Cl"_2(g) -> "PCl"_5(g)#, the percent yield was #88.2%# for a certain experiment. If #"77.4 g"# of #"PCl"_3# was consumed in the presence of xs #"Cl"_2(g)#, what would be the actual yield of #"PCl"_5(g)# for this experiment?
• How do you calculate the percent yield of #I_2# knowing that the actual mass is 1 Kg?
• A student performed a laboratory activity where beryllium was reacted with hydrochloric acid. If they actually produced 4.5g of beryllium chloride, what was the percent yield?
• Define the terms theoretical yield, actual yield, and percent yield. Why is the actual yield in a reaction almost always less than the theoretical yield? Can a reaction ever have 110% actual yield?
• Why is the optimization of yield important in chemical synthesis?
• Question #20985
• Question #40c54
• How many grams of sodium sulfide are formed if 1.50 g of hydrogen sulfide is bubbled into a solution containing 2.00 g of sodium hydroxide, assuming that the sodium sulfide is made in 94.0 % yield?
• Question #b8f52
• Assuming an efficiency of 29.40%, how would you calculate the actual yield of magnesium nitrate formed from 123.5 g of magnesium and excess copper(II) nitrate in the equation #Mg + Cu(NO_3)_2 -> Mg(NO_3)_2 + Cu#?
• How do you find the mass of CO2 produced in a reaction of 150.0g of C6H12 in sufficient (excess) oxygen if the reaction has a 35.00% yield?
• 1.09 g #H_2# is allowed to react with 10.2 g #N_2#, producing 1.12 g #NH_3#. What is the theoretical yield in grams for this reaction under the given conditions?
• In an experiment to prepare a particular compound, the theoretical yield s 65.3 g and the actual yield is 56.3 g. What is the percent yield?
• Question #c4ab3
• #"364.0 g Sb"_2"S"_3"# reacts with excess #"Fe"# to produce #"35.0 g Sb"#. What is the percent yield?
• Question #88ad7
• If the theoretical yield for a chemical reaction is 100. g and the percentage yield is 70.0%, what is the actual yield?
• What is the theoretical yield of aluminum oxide if 1.60 mol of aluminum metal is exposed to 1.50 mol of oxygen?
• A mass of #2.40*g# of calcium oxide is obtained by heating a mass of #5.00*g# calcium carbonate. What is the stoichiometric equation that represents the formation of calcium oxide, and what is the percentage yield?
• #"13.1 g CaO"# react with #"38.9 g CO"_2"#. What is the percent yield if #"16.7 g CaCO"_3"# are produced?
• Question #d9a3e
• The reaction of 4.210 g of salicylic acid (#"C"_7"H"_6"O"_3#) with 15.0 mL of acetic anhydride (#"C"_4"H"_6"O"_3; ρ = "1.082 g/mL"#) yields 3.92 g of aspirin (#"C"_9"H"_8"O"_4#). What are the theoretical and percentage yields of aspirin?
• How much aluminum oxide and how much carbon are needed to prepare 454 g of aluminum by the balance equation? See picture!
• The burning of 18.0 g of carbon produces 55.0 g of carbon dioxide. What is the theoretical yield of #CO_2#? How do you calculate the percent yield of #CO_2#?
• Question #31ddd
• If the actual yield of chlorine is 12.0 g, then what is the percent yield?
• If 156 g of sodium nitrate react, and 112 g of sodium nitrite are recovered, what is the percentage yield?
• Question #bf4d3
• When (8.30x10^-1) g of silver nitrate is dissolved in water and then mixed with excess potassium iodide solution (6.0000x10^-1) g of precipitate form. What is the percent yield of the reaction? (Answer to 3 s.d. and in proper scientific notation)
• Question #93107
• How do I calculate the yield when an amine reacts with an acid halide?
• #"56.9 g WO"_3"# reacts with excess #"H"_2"# to produce #"W"# and #"H"_2"O"#. What is the percent yield of water if the actual yield is #"10.0 g H"_2"O"#?
• Question #c7b80
• 30000 tonnes of a copper ore containing 6.5% chalcopyrite was mined. Calculate the theoretical yield of copper that could be extracted from this ore (in tonnes)?
• Question #d20e1
• Question #f26ba
• Question #ae4b9
• A #10*g# mass of carbon dioxide is obtained from the combustion of a #70.2*g# mass of octane. What is the apparent yield?
• Question #f4042
• If the percentage yield is 77.3 %, what is the yield of silver chloride when you mix 16.7 mL of 0.7 mol/L silver nitrate with 1.7 mL of 0.668 mol/L sodium chloride?
• How is yield assessed in a chemical reaction?
• Question #5efd9
• A #1.85*g# mass of calcium chloride was obtained from a #1.23*g# mass of #"calcium oxide"# and excess hydrochloric acid. What was the percentage yield?
• how much of each substance will be present at the end of the reaction? If 1.22g of the solid formed, what is the percent yield of this reaction?
• Question #732ae
• Calculate the percentage yield of ferrous sulfide if 3 moles of iron produces 220 grams of ferrous sulfide?
• Question #803c4
• Question #d16b6
• #2H_2O -> 2H_2 + O_2# What is the percent yield of #O_2# if 10.2 g of #O_2# is produced from the decomposition of 17.0 g of #H_2O#?
• Help with these three questions about mass and concentrations?
• If #14*g# of ammonia was isolated from a reaction between #N_2#, and #H_2#, what is the percentage yield?
• In the industrial preparation of silicon, 188.5 kg of molten SiO2 reacts with 87.3 kg of carbon to produce 78.4 kg of silicon, according to the following balanced equation what is the percent yield of the reaction? SiO2 (l) + 2C (s) ----> Si (l) + 2CO (g)
• Question #d2e4d
• Question #6009b
• Can someone please solve this three questions for me. Thank you for your help. (1)- in an experiment, 5g of copper was heated with excess sulphur yield 3g of copper (1)sulphide. what is the percentage yield?
• 3.45 g of hydrogen bromide (HBr) were prepared by reacting 0.920 g of hydrogen and 45.2 g of bromine. How do you calculate the theoretical yield?
• #2"Al"+3"S"→"Al"_2"S"_3# 125g of Al2S3 was produced from 75g of Al & an excess of S What is the theoretical yield of Al2S3?
• Carbon disulfide, CS2 can be made from coke, C and sulfur dioxide, SO2: 3C + 2 SO2→ CS2 + CO2. If the actual yield of CS2 is 86% of the theoretical yield, what mass of coke is needed to produce 950g of CS2?
• Question #db883
• White phosphorus, #"P"_4#, is an allotrope of phosphorus that reacts with fluorine gas to form gaseous phosphorus trifluoride. What is the mass of fluorine gas needed to produce #"120. g"# of phosphorus trifluoride if the reaction has a #78.1%# yield?
• #"1.95 g"# of #"H"_2# is allowed to react with #"9.94 g"# of #"N"_2#, producing #"1.56 g"# of #"NH"_3#. What is the theoretical yield in grams for this reaction under the given conditions?
• Question #6e6ac
• Question #ef325
• Question #4dec0
• What is the percent yield for the following chemical reaction?
• Question #1c575
• Question #ac8d7
• Question #97035
• Question #9701f
• Question #b7513
• Question #52580
• For the reaction 2S(s) + 3O2(g) →2 SO3(s) 2.0 moles of sulfur are placed in a container with an excess of oxygen and 1.7 moles of SO3 are collected. What is the percentage yield?
• Following reaction has a reaction yield of #75%#. In order to obtain #"25 g"# of carbon dioxide, what is the necessary amount of propane in moles? #"C"_3"H"_8 + "O"_2 -> "CO"_2 + "H"_2"O"# (unbalanced)
• If you start with #7.0# moles of propane and #7.0# moles of oxygen gas what is the percent yield if #4.0# moles of carbon dioxide are produced?
• When 14.0 g of calcium metal is reacted with water, 5.00 g of calcium hydroxide is produced. Using the following balanced equation, calculate the percent yield for the reaction?
• When limestone, which is principally #"CaCO"_3#, is heated, carbon dioxide and quicklime are produced by the reaction?
• If the percentage yield of the given reaction is #30%#, how many total moles of the gases will be produced if #8# moles of #"NaNO"_3# are initially taken?