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The molar conductivity of 0.007M acetic ...

The molar conductivity of 0.007M acetic acid is `20Scm^2mol^(-1)`. What is the dissociaion constant of acetic acid? choose the correct option.
`[^^_(H^+)^@= 350Scm^2mol^(-1)
^^_(CH_3COO^-)^@= 50Scm^2mol^(-1)]`

A

`1.75xx10^(-5) molL^(-1)`

B

`2.50xx10^(-5) molL^(-1)`

C

`1.75xx10^(-4) molL^(-1)`

D

`2.50xx10^(-4) molL^(-1)`

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