17. Let the limiting equivalent conductivities () of and be x and y respectively. What is the mathem — Electrochemistry Chemistry Question
Question
17. Let the limiting equivalent conductivities ($\lambda^\circ_{eq}$) of $Al^{3+}$ and $Cl^-$ be x and y respectively. What is the mathematically strict value of the limiting molar conductivity ($\Lambda^\circ_m$) of $AlCl_3$?
Answer: B
💡 Solution & Explanation
The limiting equivalent conductivity of $AlCl_3$ is $\Lambda^\circ_{eq} = \lambda^\circ_{eq}(Al^{3+}) + \lambda^\circ_{eq}(Cl^-) = x + y$. Since the total cationic charge (n-factor) for $AlCl_3$ is 3, its molar conductivity is $\Lambda^\circ_m = 3 \times \Lambda^\circ_{eq} = 3(x + y) = 3x + 3y$.
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