The dissociation constant of n-butyric acid is `1.6 xx 10^(-5)` and the molar conductivity at infinite dilution is `380 xx 10^(-4) Sm^(2) mol^(-1)`. The specific conductance of the `0.01M` acid solution isA. `1.52 xx 10^(-5) Sm^(-1)`B. `1.52 xx 10^(-2) Sm^(-1)`C. `1.52 xx 10^(-3) Sm^(-1)`D. none

The dissociation constant of n-butyric acid is `1.6 xx 10^(-5)` and th

1.	The dissociation constant of n-butyric acid is `1.6 xx 10^(-5)` and the molar conductivity at infinite dilution is `380 xx 10^(-4) Sm^(2) mol^(-1)`. The specific conductance of the `0.01M` acid solution isA. `1.52 xx 10^(-5) Sm^(-1)`B. `1.52 xx 10^(-2) Sm^(-1)`C. `1.52 xx 10^(-3) Sm^(-1)`D. none
Answer» Correct Answer - B `k_(a) = 1.69 xx 10^(-5) = C alpha^(2) = 0.01 alpha^(2) = alpha = 0.04` `alpha =(lambda_(M))/(lambda_(M)^(oo) rArr lambda_(M) = 0.04 xx 380` `lambda_(M) = 15.2 S cm^(2) "mole"^(-1) lambda_(M) = (k xx 1000)/(M)` `15.2 = (k xx 1000)/(0.01)` `k = 1.52 xx 10^(-4) S cm^(-1)` `k = 1.52 xx 10^(-2) S cm^(-1)`

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The dissociation constant of n-butyric acid is `1.6 xx 10^(-5)` and the molar conductivity at infinite dilution is `380 xx 10^(-4) Sm^(2) mol^(-1)`. The specific conductance of the `0.01M` acid solution isA. `1.52 xx 10^(-5) Sm^(-1)`B. `1.52 xx 10^(-2) Sm^(-1)`C. `1.52 xx 10^(-3) Sm^(-1)`D. none

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