The molar conductivity of a solution of a weak acid $\mathrm{HX} (0.01 \mathrm{M})$ is $10$ times smaller than the molar conductivity of a solution of a weak acid $\mathrm{HY} (0.10 \mathrm{M})$. If $\mathrm{\lambda }{°}_{{\mathrm{X}}^{-}}=\mathrm{\lambda }{°}_{{\mathrm{Y}}^{-}}$, the difference in their $\mathrm{pKa}$ values, ${\mathrm{pK}}_{\mathrm{a}}\left(\mathrm{HX}\right)-{\mathrm{pK}}_{\mathrm{a}}\left(\mathrm{HY}\right)$, is (consider degree of ionization of both acids to be $<<1$)

The molar conductance of $\mathrm{NaCl}, \mathrm{HCl}$ and ${\mathrm{CH}}_3\mathrm{COONa}$ at infinite dilution are $126.45, 426.16$ and $91.0 {\mathrm{Scm}}^2{ \mathrm{mol}}^{-1}$ respectively. The molar conductance of ${\mathrm{CH}}_3\mathrm{COOH}$ at infinite dilution is. Choose the right option for your answer.

The molar conductivity of $0.007 \mathrm{M}$ acetic acid is $20 \mathrm{S}{ \mathrm{cm}}^2{ \mathrm{mol}}^{-1}.$ What is the dissociation constant of acetic acid? Choose the correct option.

$$\begin{gathered} {\mathrm{\lambda }}_{{\mathrm{H}}^{+}}^{\circ }=350 \mathrm{S} {\mathrm{cm}}^2 {\mathrm{mol}}^{-1} \\ {\mathrm{\lambda }}_{{\mathrm{CH}}_3{\mathrm{COO}}^{-}}^{\circ }=50 \mathrm{S} {\mathrm{cm}}^2 {\mathrm{mol}}^{-1} \end{gathered}$$

What is correct for ${\mathrm{\lambda }}_{\mathrm{m}\left({\mathrm{NH}}_4\mathrm{OH}\right)}^0$?

The limiting molar conductivity and molar conductivity of acetic acid are $390.5 \mathrm{S} {\mathrm{cm}}^2. {\mathrm{mol}}^{-1}$ and $48.15 \mathrm{S} {\mathrm{cm}}^2. {\mathrm{mol}}^{-1}$ respectively. Calculate the degree acid are of dissociation of the weak acid?

The following table gives the values of limiting molar conductivity $\left({\lambda }_{\mathrm{m}}^0\right)$ of some ions

Given ${\lambda }_{\mathrm{m}}^0$ (magnesium sulfate) $=266 \mathrm{S} {\mathrm{cm}}^2 {\mathrm{mol}}^{-1}$ and ${\lambda }_{\mathrm{m}}^0$ (hydrochloric acid) $=425.9 \mathrm{S} {\mathrm{cm}}^2 {\mathrm{mol}}^{-1}$. The value of ${\lambda }_{\mathrm{m}}^0$ for magnesium chloride (in $\mathrm{S} {\mathrm{cm}}^2 {\mathrm{mol}}^{-1}$) is