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The equivalent conductances of an infini...

The equivalent conductances of an infinitely dilute solution `NH_(4)CI` is 150 and the ionic conductances of `OH^(-)` and `CI^(-)` ions are 198 and 76 respectively. What will be the equivalent conductance of the solution of `NH_(4)OH` at infinite dilution. if the equivalent conductance of a `0.01N` solution `NH_(4)OH` is `9.6, what will be its degree of dissociation.

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`lambda_(NH_(4)Cl)^(0)=lambda_(NH_(4)^(+))^(0)+lambda_(Cl^(-))^(0)`
`lambda_(NH_(4)^(+))^(0)=lambda_(NH_(4)Cl)^(0)-lambda_(Cl^(-))^(0)=150-76=74`
`lambda_(NH_(4)OH)^(0)=labda_(NH_(4)^(+))^(0)+lambda_(OH^(-))^(0)=74+198=272`
Degree of dissociation `(alpha)=(wedge_(c))/(wedge_(0))=(9.6)/(272)=0.0353`
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