Oxidizes ion to

CHEMISTRY · Multi-part · A Level · Chemistry · Oxidation, reduction and redox reactions · Oxidation, reduction and redox reactions

Problem

\text{KMnO}_4

oxidizes

X^{n+}

ion to

\text{XO}_3^-

, itself changing to

\text{Mn}^{2+}

in acid solution.

2.68 \times 10^{-3}

mole of

X^{n+}

requires

1.61 \times 10^{-3}

mole of

\text{MnO}_4^-

. (1) What is the value of

n

? (2) Also calculate the atomic mass of

X

, if the mass of 1g-equivalent of

\text{XCl}_n

is 56.