A `KMnO_(4)` solution can be standarised by titration against `As_(2)O_(3(s))`.
Channel: Doubtnut
Date: 2020-08-02

A `KMnO_(4)` solution can be standarised by titration against `As_(2)O_(3(s))`. A `0.1156 g` sample of `As_(2)O_(3)` requires `27.06mL` of the `KMnO_(4(aq.))` for its titration. What is the molarity of the `KMnO_(4(aq.))` [As `=75`]?  `5As_(2)O_(3)+4MnO_(4)^(-)+9H_(2)O+12H^(+)rarr10H_(2)AsO_(4)+4Mn^(2+)`