Question

Molecular weight of KMnO4KMnO4  is "M". In a reaction KMnO4KMnO4  is reduced to K2MnO4K2MnO4 . The equivalent weight of KMnO4KMnO4  is​

Answer 1

Answer:

The oxidation number of Mn in KMnO

4

is 7.

The oxidation number of Mn in MnSO

4

,K

2

MnO

4

,MnO

2

is 2, 6 and 4 respectively.

Equivalent weight of KMnO

4

=

Change in the oxidation number of Mn

Molecular weight of KMnO

4

Equivalent weight of KMnO

4

Compound formed

1

158

=158 K

2

MnO

4

3

158

=52.66 MnO

2

5

158

=31.66 MnSO

4