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Percent Yield

In an actual reaction, the amount of product formed is usually less than predicted from stoichiometry. This is because -

  1. Side reactions may form unwanted products.
  2. The reaction may not go to completion even if some of both reactants are left over.

Theoretical yield: amount of maximum product calculated from the reaction.

Actual yield: the amount of product obtained from the reaction.

Percent Yield Formula