CH-1007
Percentage yield and purity
Chemistry · Secondary 3 · Medium · Percentage yield and purity
A 2.00 g sample of hydrated copper(II) sulfate, CuSO₄·xH₂O, is heated until all the water is removed. The mass of anhydrous CuSO₄ obtained is 1.28 g. What is the percentage by mass of water in the hydrate?
- 36%
- 64%
- 54%
- 28%
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