Degree of dissociation of pure water is `1.9xx10^(-9)`. Molar ionic conductances of `H^(+)` and `OH^(-)` ions at infinite diluton are 200 S `cm^(2)mol^(-1) and 250" S "cm^(2)mol^(-1)` respectively. Molar conductance of water isA. `3.8xx10^(-7)" S "cm^(2)mol^(-1)`B. `5.7xx10^(-7)" S "cm^(2)mol^(-1)`C. `9.5xx10^(-7)" S "cm^(2)mol^(-1)`D. `1.045xx10^(-6)" S "cm^(2)mol^(-1)`

Degree of dissociation of pure water is `1.9xx10^(-9)`. Molar ionic co

1.	Degree of dissociation of pure water is `1.9xx10^(-9)`. Molar ionic conductances of `H^(+)` and `OH^(-)` ions at infinite diluton are 200 S `cm^(2)mol^(-1) and 250" S "cm^(2)mol^(-1)` respectively. Molar conductance of water isA. `3.8xx10^(-7)" S "cm^(2)mol^(-1)`B. `5.7xx10^(-7)" S "cm^(2)mol^(-1)`C. `9.5xx10^(-7)" S "cm^(2)mol^(-1)`D. `1.045xx10^(-6)" S "cm^(2)mol^(-1)`
Answer» Correct Answer - D Degree of dissociation `(alpha)=(wedge_(m)^(c))/(wedge_(m)^(0))` `wedge_(m)^(c)=alphaxxwedge_(m)^(0)=(1.9xx10^(-9))xx(200+350)" S "cm^(2)mol^(-1)` `=1.9xx550xx10^(-9)=1.045xx10^(-6)" S "cm^(2)mol^(-1)`

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