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Molar conductivities `(Lambda_(m)^(@))` at infinite dilution of `NaCl, HCl` and `CH_(3)COONa` arc `126.4, 425.9` and `91.0 S cm^(2) mol^(-1)` respecti

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Molar conductivities `(Lambda_(m)^(@))` at infinite dilution of `NaCl, HCl` and `CH_(3)COONa` arc `126.4, 425.9` and `91.0 S cm^(2) mol^(-1)` respectively. `Lambda_(m)^(@)` for `CH_(3)COOH` will be
A. 390.5
B. 299.5
C. 208.5
D. 217.4
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Correct Answer - A
`Lambda (HOAc)= Lambda^(@) (NaO Ac)+Lambda^(@)(HCl)- Lambda^(@) (NaCl)`
`=91+425.9-126.4=390.5`
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