Mixed Stoichiometry Problems



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?

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 ?

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