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Yield and purity
The yield is the amount of product you obtain from a reaction. The yield will still be important - but the purity of the product may be even more important. Impurities could harm people.
Finding the % of yield
Finding the % purity
The formula for percentage yield is:
Example:
The aspirin from the above experiment was not pure. 121.2 g of solid was obtained, but analysis showed that only 109.2g of it was aspirin. Calculate the percentage purity of the product.
Solution:
Percentage purity = 109.2 ÷ 121.2 × 100% = 90.0%
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