Electrolytic Conductance — Prelims Questions

The resistance of a $0.01,\text{M}$ solution of an electrolyte was found to be $210,Omega$ at $298,\text{K}$. The cell constant is $0.88,\text{cm}^{-1}$. Calculate the molar conductivity of the solution.

Which of the following statements is INCORRECT regarding electrolytic conductance?

The molar conductivities at infinite dilution for $\text{NaCl}$, $\text{HCl}$, and $\text{CH}_3\text{COONa}$ are $126.4$, $425.9$, and $91.0,\text{S} \cdot \text{cm}^2 \cdot \text{mol}^{-1}$ respectively. Calculate the molar conductivity at infinite dilution for $\text{CH}_3\text{COOH}$.

A $0.02,\text{M}$ solution of a weak acid $\text{HA}$ has a molar conductivity of $15,\text{S} \cdot \text{cm}^2 \cdot \text{mol}^{-1}$. If the limiting molar conductivity of $\text{HA}$ is $300,\text{S} \cdot \text{cm}^2 \cdot \text{mol}^{-1}$, what is the degree of dissociation ($\alpha$) of the acid?

Which of the following factors does NOT affect the electrolytic conductance of a solution?

The conductivity of $0.20,\text{M}$ solution of $ext{KCl}$ at $298,\text{K}$ is $0.0248,\text{S} \cdot \text{cm}^{-1}$. Calculate its molar conductivity.

Why does the conductivity ($\kappa$) of an electrolytic solution generally increase with increasing concentration?