For a weak electrolyte,the degree of dissocia | vedclass

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(B) According to Ostwald's dilution law,the degree of dissociation $\alpha$ for a weak electrolyte is given by the formula $\alpha = \sqrt{\frac{K_a}{

Vedclass · Accepted Answer

Increases with dilution.

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(B) According to Ostwald's dilution law,the degree of dissociation $\alpha$ for a weak electrolyte is given by the formula $\alpha = \sqrt{\frac{K_a}{C}}$,where $K_a$ is the dissociation constant and $C$ is the molar concentration. Since $C = \frac{n}{V}$,where $V$ is the volume of the solution,we have $\alpha = \sqrt{K_a 	imes V}$. As the dilution increases,the volume $V$ increases,which leads to an increase in the degree of dissociation $\alpha$.

For a weak electrolyte,the degree of dissociation $\alpha$ is:

Similar Questions

Calculate the percentage dissociation of a $0.05 \ M$ solution of a weak electrolyte if its molar conductivity and molar conductivity at infinite dilution are respectively $3.3 \ \Omega^{-1} \ cm^2 \ mol^{-1}$ and $132 \ \Omega^{-1} \ cm^2 \ mol^{-1}$. (in $\%$)

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