Question

How would you determine the equivalent and molar conductivities of a given solution?

Answer 1

The equivalent and molar conductivities are related to specific conductivity by the following expressions.

Λ_eq = `kappa xx 1000/N`

Λ_m = `kappa xx 1000/M`

where M is the solution’s molarity (molar concentration) and N is its normality. Therefore, using the above equations, the value of equivalent conductivity (Λ_eq) or molar conductivity (Λ_m) can be found by measuring the specific conductivity (κ) mentioned above and knowing the normality or molarity of the solution.