Question

(i) State the law which helps to determine the limiting molar conductivity of weak electrolyte.

(ii) Calculate limiting molar conductivity of CaSO₄ (limiting molar conductivity of calcium and sulphate ions are 119.0 and 160.0 S cm² mol^-1 respectively)

Answer 1

Kohlrausch law of independent migration of ions : 

(i) The limiting molar conductivity of an electrolyte can be represented as the sum of the individual contribution of the anions and cations of the electrolyte.