824 g of were dissolved in of solution

CHEMISTRY · Subjective · CBSE · Chemistry · Redox Reactions · Redox Reactions

Problem

824 g of

\text{FeSO}_4 \cdot (\text{NH}_4)_2\text{SO}_4 \cdot X\text{H}_2\text{O}

were dissolved in

250\text{ mL}

of solution.

20\text{ mL}

of this solution required

20\text{ mL}

\text{KMnO}_4

containing

3.52\text{ g}

of 90% by mass

\text{KMnO}_4

dissolved per litre. The value of 'X' is .....