A reaction of 10.50 g of 1,2-diphenylethane-1,2-dione with conc. NaOH followed by aqueous acidic work-up furnished 8.55 g of a carboxylic acid. The yield of the carboxylic acid in this reaction is _______ %.
(rounded off to the nearest integer)
(rounded off to the nearest integer)
Correct Answer: 74 - 76
Solution and Explanation
The formula for calculating the yield of a reaction is:
Yield (%) = (Actual yield / Theoretical yield) × 100
Given:
- Actual yield = 8.55 g
- Theoretical yield = 10.50 g (mass of 1,2-diphenylethane-1,2-dione)
Substituting the values into the formula:
Yield (%) = 8.55 g / 10.50 g × 100 = 74%
Thus, the yield of the carboxylic acid in this reaction is 74%.
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