Question

(a) State the following:

(i) Kohlrausch law of independent migration of ions 

Hint:

Kohlrausch's law helps in understanding the individual contributions of ions to the overall conductivity in solutions, especially at infinite dilution.

Answer 1

The Kohlrausch law of independent migration of ions states that the molar conductivity of an electrolyte at infinite dilution is the sum of the contributions from the individual ions. This means that the contribution of each ion to the total conductivity can be considered independently of the other ions. \[ \Lambda_m^\infty = \lambda_+^\infty + \lambda_-^\infty \] Where: \(\Lambda_m^\infty\) is the molar conductivity at infinite dilution, \(\lambda_+^\infty\) is the conductivity of the cation at infinite dilution, and \(\lambda_-^\infty\) is the conductivity of the anion at infinite dilution. \vspace{10pt}