Mixed Mole Problems.pdf problems moles physic physical science

1. Name: _________________________ Period:________ Date: ________
Mixed Stoichiometry Problems
1. Hydrogen and oxygen react under a specific set of conditions to produce water according to
the following:
2H2 (g) + O2 (g)  2H2O (g)
A. How many moles of hydrogen would be required in order to produce 5.0 moles of water?
B. How many moles of oxygen are required to produce 436 L of water vapor?
C. How many molecules of O2 are required to form 13.5 L of water vapor?
2. Sulfuric acid reacts with sodium hydroxide according to the following:
H2SO4 + NaOH  HOH + Na2SO4
A. Balance the equation
B. How many particles of sulfuric acid would be required to react with 0.75 moles of
sodium hydroxide ?
 C. If 59.6 L of liquid water were produced in this reaction, how many grams of
sodium hydroxide were consumed?

2. 3. Sodium chloride is produced from its elements in a synthesis reaction. What volume of chlorine
gas would be required to produce 25.0 moles of sodium chloride ?
4. The double replacement reaction between silver nitrate and sodium bromide produces
silver bromide, a component of photographic film.
AgNO3 + _________  AgBr + __________
A. If 4.50 moles of silver nitrate react, what mass of sodium bromide is required?
B. If 754 g of silver bromide is produced, how many formula units of silver nitrate
were originally used in the reaction?
5. Na2SO4 + Ca(OH)2  2NaOH + CaSO4
A. 1.67 moles of calcium hydroxide reacts with sodium sulfate to form how many moles
of sodium hydroxide?
B. 32.1 g of sodium sulfate reacts with calcium hydroxide to form how many formula units
of calcium sulfate?
C. 146 g of sodium sulfate reacts with calcium hydroxide to form how many grams of NaOH ?