Molar conductance of a 0.01 M aqueous solution of KCl is 150 S cm2 mol – InterviewSolution

1.	Molar conductance of a 0.01 M aqueous solution of KCl is 150 S cm2 mol−1 and the resistance of the solution is 190 ohm. Using the same conductance cell, the resistance of a 0.01 M ammonia solution was 2460 ohm. Find Kb (base ionization constant) of ammonia. Ionic conductance of NH+4 and OH− are 73.4 and 198.6 S cm2 mol−1 respectively.
Answer» Molar conductance of a 0.01 M aqueous solution of $K C l$ is $150 S c m^{2} m o l^{- 1}$ and the resistance of the solution is 190 ohm. Using the same conductance cell, the resistance of a 0.01 M ammonia solution was 2460 ohm. Find $K_{b}$ (base ionization constant) of ammonia. Ionic conductance of $N H_{4}^{+}$ and $O H^{-}$ are $73.4$ and $198.6 S c m^{2} m o l^{- 1}$ respectively.

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