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Ionic conductance at infinite dilution of and ions are and respectively. Calculate the molar…
(a)
Ionic conductance at infinite dilution of $\text{Al}^{3+}$ and $\text{SO}_4^{2-}$ ions are $189\text{ ohm}^{-1}\text{cm}^2\text{mol}^{-1}$ and $160\text{ ohm}^{-1}\text{cm}^2\text{mol}^{-1}$ respectively.
Calculate the molar conductance of $\text{Al}_2(\text{SO}_4)_3$ at infinite dilution.
(b)
The resistance of $0\cdot1\text{ N}$ solution of an electrolyte in a conducting cell was found to be $15\text{ ohm}$.
Calculate the following if the cell constant is $0\cdot367\text{ cm}^{-1}$:
(1) Conductance ($C$)
(2) Specific conductance ($\kappa$)
(3) Equivalent conductance ($\Lambda_{eq}$)
Answer
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From ISC 2026 Improvement Chemistry Paper 1, question 18(ii).