Name Period Date

Stoichiometry – Ch. 9 (p. 275-287)1. How many grams of hydrogen gas would be needed to form 8.0 grams of water?

____ H2 + ____ O2 ____ H2O

2. Calculate the number of grams of nitrogen gas required to make 1.22 L of ammonia at STP.

____ N2 + ____ H2 ____ NH3

3. Iron reacts with chlorine gas to form iron(III) chloride. How many grams of iron(III) chloride are formed from 112 g of iron? (Write the balanced equation.)

4. What volume of 0.50M AgNO3 is required to react with 25.0 mL of 1.5M CaCl2?

____ AgNO3 + ____ CaCl2 ____ AgCl + ____ Ca(NO3)2

5. How many grams of zinc are required to react with 125 mL of 3.00M hydrochloric acid?

____ Zn + ____ HCl ____ ZnCl2 + ____ H2

6. How many liters of hydrogen gas will be produced by 5.72 g of zinc in the reaction from #5 at STP?

Stoichiometry – Ch. 9 CHEM