Question

A student determines that the theoretical yield of CaCO3 from a precipitation reaction is 21.5 grams. However, this student only recovers 19.9 grams of precipitate through filtration of the solution. What would be this student’s percent yield?

Answer 1

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The maximum amount of CaCO3 we can expect is 0.0180 mole x 100 g/mole = 1.80 g The 1.80 g is the theoretical (calculated) yield of CaCO3 in this example. Your values may differ. We will compare the actual yield (experimental value) with the theoretical yield to find the % yield. . 1.Theoretical yield is what you calculate the yield will be using the balanced chemical reaction. Actual yield is what you actually get in a chemical reaction.

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