CH-979
Percentage yield and purity
Chemistry · Secondary 3 · Easy · Percentage yield and purity
A student measures the mass of a hydrated salt sample as 3.50 g. After heating to constant mass, the anhydrous salt weighs 2.10 g.
What is the percentage by mass of water in the hydrated salt?
What is the percentage by mass of water in the hydrated salt?
- 40%
- 60%
- 33%
- 67%
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