Percent Yield Worksheet - HUBBARD'S CHEMISTRY
Stoichiometry - Percent Yield Worksheet
SHOW ALL WORK!!!!!
NOTE: % Yield = Actual Yield x 100
Theoretical Yeild
1) Balance the equation for the reaction of iron (III) phosphate with sodium sulfate to make iron (III) sulfate and sodium phosphate.
FePO4 + Na2SO4 ( Fe2(SO4)3 + Na3PO4
a) If I perform this reaction with 25 grams of iron (III) phosphate and an excess of sodium sulfate, how many grams of iron (III) sulfate can I make?
b) If 18.5 grams of iron (III) sulfate are actually made when I do this reaction, what is my percent yield?
c) Is the answer from problem #3 reasonable? Explain.
d) If I do this reaction with 15 grams of sodium sulfate and get a 65.0% yield, how many grams of sodium phosphate will I make?
2) LiOH + KCl ( LiCl + KOH
a) I began this reaction with 20 grams of lithium hydroxide. What is my theoretical yield of lithium chloride?
b) I actually produced 6 grams of lithium chloride. What is my percent yield?
3) C3H8 + 5 O2 ( 3 CO2 + 4 H2O
a) If I start with 5 grams of C3H8, what is my theoretical yield of water?
b) I got a percent yield of 75% How many grams of water did I make?
4) Be + 2 HCl ( BeCl2 + H2
My theoretical yield of beryllium chloride was 10.7 grams. If my actual yield was 4.5 grams, what was my percent yield?
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Theoretical Yield = answer to your stoich problem.
Actual Yield = given in the problem or the
experimental yield.
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