1291 Percent Yield Actual Yield Theoretical Yield 100 Percent yield is very important in the manufacture of products. The yield calculation that you perform for most synthetic procedures is based on the comparision of moles of product isolated and moles of product that you can theoretically obtain based on the the limiting reagent. Lovely but what is an actual.
Percent recovery computes the percentage of an original substance that is recovered after a chemical reaction is completed.
This ScienceStruck article explains how to calculate the percent recovery of any purified substance. Estimate the purity of the crude product using the ratio of the mass of recrystallized product to the mass of the crude product assume that your recrystallized product is 100 pure. 7mg Vanillin x 1 g 1000 mg x 1 molVanillin 15215. A percent yield of 90 means the reaction was 90 efficient and 10 of the materials were wasted they failed to react or their products were not captured.