1.

The equivalent conductances of two strong electrolytes at infinite dilution in `H_(2)O` (where ions move freely through a solution) at `25^(@)C` are given below : `Lambda_(CH_(3)COONa)^(@) = 91.0 S cm^(2)//"equi v"`. `Lambda_(HCl)^(@) = 426.2 S cm^(2)//"equiv"`. What additional information//quantity one need to calculate `Lambda^(@)` of an aqueous solution of acetic acid ?A. `Lambda^(@)` of chloroacetic (`ClCH_(2)COOH`)B. `Lambda^(@)` of NaClC. `Lambda^(@)" of " CH_(3)COOK`D. the limiting equivalent conductance of `H^(+)` ions.

Answer» Correct Answer - B
(b) `Lambda^(@)` of NaCl is needed.
`Lambda_(CH_(3)COOH)^(@)=Lambda_(CH_(3)COOH)^(@)+Lambda_(HCl)^(@)-Lambda_(NaCl)^(@)`


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