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The molar conductance of HCl, NaCl and C...

The molar conductance of HCl, NaCl and `CH_(3)COONa` are 426,12 6 and 91 `Omega^(-1)cm^(2)"mol"^(-1)` respectively. The molar c onductance for `CH_(3)COOH` is

A

`561Omega^(-1) "mol"^(-1)`

B

`391Omega^(-1)cm^(2)"mol"^(-1)`

C

`261Omega^(-1)cm^(2)"mol"^(-1)`

D

`612Omega^(-1)cm^(2)"mol"^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
B
`^^_(CH_(3)COOH)^(oo)=+^^_( HCl)^(oo)+^^_(CH_(3)COONa^(-))^(oo)-^^_(NaCl)^(oo)`
`=426+91-126=391Omega^(-1)cm^(2)"mol"^(-1)`
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