Calculate the concentration in of the following standard solutions

CHEMISTRY · Multi-part · A Level · Chemistry · Amount of substance · Amount of substance

Problem

Calculate the concentration in

\text{mol dm}^{-3}

of the following standard solutions. The substances are all hydrated, so they contain water of crystallisation. (a)

100 \text{ cm}^3

of solution containing

1.00 \text{ g}

\text{MgSO}_4 \cdot 7\text{H}_2\text{O}

(b)

250 \text{ cm}^3

of solution containing

1.00 \text{ g}

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