CH-1973

Percentage yield and purity

Chemistry · Secondary 4 · Hard · Percentage yield and purity

A student heats 5.00 g of hydrated copper(II) sulfate,

\text{CuSO}_4\cdot 5\text{H}_2\text{O}

, until it becomes anhydrous

\text{CuSO}_4

.

If 3.20 g of anhydrous

\text{CuSO}_4

is obtained, what is the percentage yield?

[Mr:

\text{CuSO}_4\cdot 5\text{H}_2\text{O}

, 250;

\text{CuSO}_4

, 160]

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