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Electrochemistry

Question
CBSEENCH12005995

Molar conductance of a 1.5 M solution of an electrolyte is found to be 138.9 S cm2mol–1. What would be the specific conductance of this solution.

Solution
We have given that
Λm = 138.9 S cm2,  M = 1.5, K = ?Λm = 1000 KM   K = Λm×M1000           = 138.9 S cm2 mol-1×1.5 mol Lt-11000 cm3      K = 208.351000 S cm-1      K = 2.0835 × 10-1 S cm-1       K = 0.20835 S cm-1.