The calculated yield or theoretical yield of a reaction is the maximum amount of product that would be formed under the given conditions (amount of reactants, temperature, etc.). This can be determined using a balanced chemical equation and the quantities of the reactants.
The actual yield or measured yield is the amount of products actually formed in a reaction. Actual yield is generally less than the calculated yield or theoretical yield, because the reaction may not go to 100% completion, some reactant may be lost, etc.
The percentage yield gives us a quantitative idea of how much completion we achieved. In other words, it is a measure of the % of theoretical yield that was actually achieved. Mathematically,
Percentage yield = actual yield/theoretical yield x 100%
= 150/162 x 100 = 92.6%.
Therefore, the % yield of the given chemical reaction is 92.6%.
Hope this helps.
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