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Question

A 0.05 N solution of a salt occupying a volume between two platinum electrodes separated by a distance of 1.72 cm and having an area of 4.5 cm2 has a resistance of 250 ohm.
Calculate the equivalent conductance of the solution.

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Solution

Specific conductance =Conductance×Cell constant
K=C×lA
=1R×lA
=1250×1.724.5
=1.5288×103ohm1cm1
e=K×1000N
=1.5288×103×10000.05
=30.56 ohm1cm2eq1.

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