Question

What is percentage yield?

Answer 1

In chemistry, yield, also referred to as reaction yield, is a measure of the quantity of moles of a product formed in relation to the reactant consumed, obtained in a chemical reaction, usually expressed as a percentage. [1] Yield is one of the primary factors that scientists must consider in organic and inorganic chemical synthesis processes.[2] In chemical reaction engineering, "yield", "conversion" and "selectivity" are terms used to describe ratios of how much of a reactant was consumed (conversion), how much desired product was formed (yield) in relation to the undesired product (selectivity), represented as X, Y, and S. (Website I used is Wikipedia)

Answer 2

Percent Yield is defined as the actual yield divided by the theoretical yield times 100. Percent Yield=(Actual Yield Theoretical Yield)×100% There are many reasons why the actual yield of a chemical reaction may be less than the theoretical yield, and these will be taken up during later Chapters of the course.