A tablet with mass was dissolved in dilute sulfuric acid and made up to with water

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

Problem

A tablet with mass

0.940\text{ g}

was dissolved in dilute sulfuric acid and made up to

250\text{ cm}^3

with water.

25.0\text{ cm}^3

of this solution was titrated with

0.00133\text{ mol dm}^{-3}\text{ KMnO}_4

, requiring

32.5\text{ cm}^3

of the

\text{KMnO}_4

. Calculate the percentage by mass of

\text{Fe}^{2+}

in the tablet.