Percentage yield mass of actual yield mass of theoretical yield 100 Lets assume that you obtained an actual yield of 850 grams. You need to begin with a balanced chemical equation and define the limiting reactant. Theoretical yield can also be worked out using a mole calculation.
Percentage yield frac actual yield theoretical yield times 100 The percentage yield can vary from 100 no product has.
Theoretical Yield Formula Questions. The formula for calculating the percent yield is. Multiply the answer that you got in Step 4 by 100 to get your final actual yield. Multiply the answer that you got in step 4 by 100 to get your final actual yield.