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How many atoms are present in 48.60 g of Mg?

How do you solve #10x^211x6=0#?

You have 1.25 L of oxygen gas at STP. What is its mass?

How do you use the HendersonHasselbalch to calculate the pH of a buffer solution that is .50 M in #NH_3# and . 20 M in #NH_4Cl#?

What is the molality of a solution in which 2.3 g #O_2# gas dissolved in 355 g of water?

If #3 L# of a gas at room temperature exerts a pressure of #15 kPa# on its container, what pressure will the gas exert if the container's volume changes to #5 L#?

A solution has #[H^+] = 2.0 * 10^5# #M#. How do you find the pOH of this solution?

How do you solve for x: # 3(2x)=12#?

With a 0.5 M solution, many moles of NaCI would there be in 1,000 mL?

What volume (in liters) does 2.895 moles of oxygen occupy at STP?

How do you solve #x − 6 = 11#?

How many moles is 135 L of ammonia gas at STP?

What is the difference of #9.47.9#?

How do you solve #2x^2  5x  3 = 0# using the quadratic formula?

What is the power of a kitchen blender can perform 3750 joules of work in 15 seconds?

How do you balance #PbSO_4 → PbSO_3 + O_2#?

What is the mass, in grams, of 15 L of #O_2# at STP?

If #12 L# of a gas at room temperature exerts a pressure of #64 kPa# on its container, what pressure will the gas exert if the container's volume changes to #24 L#?

How many moles of #ZnCl# are in 100 mL of 0.300 M solution?

A foam material has a density of #175# #g##/L#. What is its density in units of #lb##/ft^3#?

A solution contains 225 g of glucose, #C_6H_12O_6#, dissolved in enough water to make 0.825 L of solution. What is the molarity of the solution?

A pendulum swings back and forth with a period of 0.5 s. What is the length of the pendulum arm?

How do you convert #5.3 * 10^25# molecules of #CO_2# to moles?

How do you solve #4y+13=37#?

The density of mercury metal is 13.6 g/mL. What is the mass of 3.55 mL of the metal?

How do you solve #3.4/x=2.17/7.7#?

What is 480 cm as m?

How many moles of sodium nitrate, #NaNO_3#, would be produced from the complete reaction of 253g sodium chromate, #Na_2CrO_4#?

What is the molar mass of sodium oxygen oxalate #Na_2C_2O_4#?

What is the total number of grams of #NaI# needed to make 1.0 liter of a 0.010 M solution?

The mass number of a chromium atom is 52 and it has 24 protons. How many neutrons does this atom have?

How do you figure out how many Valence electrons is in an atom?

How do you find the length of the missing side given a=19 b=? c=26?

How do you solve #14x=3x2#?

A block of aluminum occupies a volume of 15.0 mL and weighs 40.5 g. What is it density?

If an atom contains 12 protons and 10 neutrons, what's its mass number?

How do you solve the inequality #2x  8< 7#?

A container with a volume of #7 L# contains a gas with a temperature of #420^o K#. If the temperature of the gas changes to #300 ^o K# without any change in pressure, what must the container's new volume be?

Solid magnesium has a specific heat of 1.01 J/g°C. How much heat is given off by a 20.0 gram sample of magnesium when it cools from 70.0°C to 50.0°C?

How do you solve #4=(5z+2)/3#?

What is the volume of 19.87 mol of ammonium chloride (#NH_4Cl#) at STP?

How do you solve #m  1 1/2 =  5/4#?

What is the molar mass of copper(l) nitrate, #Cu(NO_3)_2#?

What is the density of sulfuric acid if 35.4 mL of the acid weighs 65.14 g?

What is the amount of heat liberated (in kJ) from 327 g of mercury when it cools from 77.8°C to 12.0°C?

What is the boiling point (in °C) of a 1.56 m aqueous solution of #CaCl_2#?

The pH of a solution is 8.7, what is the pOH?

If #7/5 L# of a gas at room temperature exerts a pressure of #6 kPa# on its container, what pressure will the gas exert if the container's volume changes to #2/3 L#?

A certain shade of blue has a frequency of #7.32 * 10^14# #Hz#. What is the energy of exactly one photon of this light?

How is a Celsius temperature reading converted to a Kelvin temperature?

How many grams of sodium hydroxide are needed to completely neutralize 25.0 grams of sulfuric acid?

An #HCl# solution has a concentration of #3.26 * 10^2# #M#. What is the pH of this solution?

What is the reciprocal of #3#?

What is the molar mass of #NH_3#?

Abdul runs 7 miles in 80 minutes. At the same rate, how many miles would he run in 64 minutes?

How do you convert 100 mm Hg to Pa?

A textbook weighs 58.8 N on Earth. What is the mass of the textbook?

How do you solve for y: in # 3y = ab#?

How many silver atoms are there in 4.01 g of silver?

What is STP in chemistry?

If #9 L# of a gas at room temperature exerts a pressure of #12 kPa# on its container, what pressure will the gas exert if the container's volume changes to #4 L#?

How many molecules of water are there in 36 grams of #H_2O#?

How do you solve #n^24=77#?

What is the H+ concentration (in molarity) of a solution with a pOH of 6.7?

How do you solve #6x^2  7x + 2 = 0# using the quadratic formula?

How many #"g"# of water are required to be mixed with #"11.75 g"# of #HgCl# in order to make a #"0.01 m"# solution?

How do you solve #3x^2  8x + 5 = 0 # using the quadratic formula?

A mixture of two gases has a total pressure of 6.7 atm. If one gas has a partial pressure of 4.1 atm, what is the partial pressure of the other gas?

If #2.4*10^5# #L# of gas is at #180# #mmHg#, what is the pressure when the gas is compressed to #1.8*10^3# #L# at constant temperature?

What is the #[OH^]# in a solution that has a #[H_3O]=1.0*10^6# #M#?

62% of what is 89.3?

Sam ran 63,756 feet in 70 minutes. What is Sam's rate in miles per hour?

How do you convert 16.2 ft to m?

What is the pressure (atm) of 3.5 moles of helium at 50 °C in a rigid container whose volume is 25.0 L?

How do you solve # 12 + 3x = 30#?

How do you determine the molar mass of #Fe_2O_3#?

What volume is needed to store 0.80 moles of helium gas at 204.6 kPa and 300 K?

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