Question

Calculate the equivalent mass of KMnO4 (MnO4- to Mn2​

Answer 1

EQUIVALENT MASS OF KMNO4= 158/5=31.6GRAMS

Answer 2

MnO4- + 8H+ +5e = Mn+2 +4H2O

from this reaction we can deduce that Mn+7 reduced to Mn+2 .

So n factor =5

Equivalent weight= molecular weight /n factor

Molecular wt of KMnO4=158.5

equivalent weight=158.5/5

=31.6g