Question

Which of the following is true for the actual yield of a reaction?

It is always calculated as a ratio.
It is the yield from the excess reactant.
It is the yield from the limiting reactant.
It is always less than the theoretical yield.

Answer 1

Answer:

It is always less than the theoretical yield

Explanation:

For many chemical reactions, the actual yield is usually less than the theoretical yield. This is due to possible loss in the process or inefficiency of the chemical reaction.

Answer 2

Answer:

It is always less than the theoretical yield.

Explanation:

Theoretical yield is obtained from stoichiometry calculation of a balanced equation. Actual yield is the amount of product formed from a reaction. Percentage yield is the ratio of actual yield to the theoretical yield of a product. Percentage yield is never 100 % or greater than 100%. Therefore,  Actual yield of a product always less than the theoretical yield.