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The equivalent conductance of two strong...

The equivalent conductance of two strong electrolytes at infinite dilution in `H_(2)O` (where ions move freely through a solution) at `25^(@)C` are given below:
`A_(CH_(3)COONa)^(@)=91.0S cm^(2)//"equiv"`
`A_(HCl)^(@)=426.25cm^(2)//"equiv"`
What additional information/quantity one needs to calculate `A^(@)` of an aqueous solution of acetic acid?

A

`Lambda^(@)` of chloroacetic acid `(ClCH_(2)COOH)`

B

`Lambda^(@)` of NaCl

C

`Lambda^(@)` of `CH_(3)COOK`

D

The limiting equivalent conductance of `H^(+) (lambda_(H+)^(@))`

Text Solution

Verified by Experts

The correct Answer is:
B
`Lambda_(eq(CH_(3)COOH)) = Lambda_(eq CH_(3)COONa)^(infty) + Lambda_(eq HCl)^(infty) - Lambda_(eq NaCl)^(infty)`
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