Mastering Stoichiometry and Yield Calculations

• Neither, both are in excess

• 1:1

• 1:2

• 3:2

• 2:3

A chemical reaction theoretically produces 50 grams of product, but only 40 grams are actually obtained. What is the percent yield?

• 80%

• 90%

• 75%

• 85%

• 5 moles

• 10 moles

• 2.5 moles

• 7.5 moles

• 4 moles

• 6 moles

• 8 moles

• 12 moles

• 12 moles

• 18 moles

• 24 moles

• 36 moles

A reaction has a theoretical yield of 100 grams but an actual yield of 70 grams. Calculate the percent yield.

• 70%

• 75%

• 80%

• 85%

• Neither, both are in excess

• 10 moles

• 20 moles

• 30 moles

• 40 moles