Suggest 3 reasons why the percentage yield of a chemical reaction may be less than 100%.

  1. The reactants may not all react (e.g. because the reaction is very slow or reaches equilibrium).
  2. Some of the products may be lost during workup procedures.
  3. There may be side reactions, meaning that other products are produced instead.

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What is the formula for percentage yield?

% yield= theoretical yieldactual yield​×100

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What is meant by the percentage yield of a reaction?

Percentage yield is a measure of how efficient a reaction is, indicating how close the actual yield is to the theoretical maximum.

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