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A KMnO(4) solution can be standarised by...

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 `27.08mL` 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_(3)AsO_(4)+4Mn^(2+)`

A

0.0172 M

B

1.0172 M

C

0,172 M

D

0.9172 M

Text Solution

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The correct Answer is:
A
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