the resistance of a N/10 Kcl aqueous solution is 245 ohm. if the electrodes in the cell are 4 cm apart and area having 7 cm² is the molar conductance of the solution will be
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We have,
Concentration = 0.1 M
Resistance = 245 ohm
Length, L = 4
Area, A = 7
=> conductance = 1/245
We know that
specific conductance, k = conductance * L/A
= 1*4/245*7
= 0.002332 mho cm⁻¹
We know that Molar conductance = specific conductance / concentration
= 0.002332/0.1
= 0.02332 mho cm⁻¹M⁻¹
Hence the molar conductance of the solution is 0.02332 mho cm⁻¹M⁻¹.
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