Calculate the volume of 0.1`MKMnO_(4)` required to react with 100 ml. of 0.1 M `H_(2)C_(2)O_(4)`.
`2H_(2)O` solution in the presence of `H_(2)SO_(4)`.

Explanation

Balanced chemical equation for the given data is
2 `KMnO_(4)+3H_(2)SO_(4)+5H_(2)C_(2)O_(4)to K_(2)SO_(4)+2 MnSO_(4)+8H_(2)O+10CO_(2)`
Formulae
`(M_(1)V_(1))/(n_(1))=(M_(2)V_(2))/(n_(2))`
`(0.1xxV_(1))/(2)=(0.1xx100)/(8)`
`V_(1)`=40" ml"
`KMnO_(4)`
`M_(1)=0.1` M
`V_(1)=?`
`n_(1)=2`
Oxalic acid
`M_(2)=0.1 M `
`V_(2)= 100` " ml"
`n_(2)=5`