NAME:___________________________________
Mods:______
 Stoichiometry Practice! 
3 Li2S + 2 AlN → 2 Li3N + Al2S3
Lithium Sulfide
Aluminum Nitride
Lithium Nitride
Aluminum Sulfide
*1.
How many grams of lithium sulfide are needed to produce 754.0 grams of aluminum sulfide?
*2.
How many grams of aluminum nitride are needed to produce 2860. grams of lithium nitride?
2 K + Cl2 → 2 KCl
Potassium
Chlorine
Potassium Chloride
*1.
How many grams of potassium chloride can be produced from 222.2 grams of potassium?
2.
How many liters of chlorine gas at STP are needed to make 55.50 moles of potassium chloride?
3.
How many liters of chlorine gas are needed to make 675.0 grams of potassium chloride?
“Keep workin’!
“Stoichiometry Rules!”
Cu + Ag2SO4 → 2 Ag + CuSO4
Copper
Silver Sulfate
Silver
Cupric Sulfate
*1.
How many grams of copper are needed to produce 156 grams of silver?
2.
How many atoms of silver can be produced from 388 moles of silver sulfate?
3.
How many grams of silver sulfate are needed to make 8.251 x 1024 atoms of silver?
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2 Na + Cl2 → 2 NaCl
 Determine the limiting reactant, the theoretical yield, and the percentage yield
if 25.0 g of Cl2 are mixed with 20.0 g of Na and 36.4 g of NaCl actually form.
Two
Mass-Mass
Problems!
Limiting Reactant: ___________________
Theoretical Yield: _____________________
Percent Yield
Calculation
Percentage Yield: ____________________________