4 S cm2 mol–1
and similarly it was found that
L°
m (NaBr)– L°
m (NaCl) = L°
m (KBr) – L°
m (KCl) ≃ 1 8 S cm2 mol–1
On the basis of the above observations he enunciated Kohlrausch
law of independent migration of ions The law states that limiting
molar conductivity of an electrolyte can be represented as the sum of the
individual contributions of the anion and cation of the electrolyte Thus,
if l°
Na+ and l°
Cl
– are limiting molar  conductivity of the sodium and chloride
ions respectively, then the limiting molar conductivity for sodium chloride
is given by the equation:
L°m (NaCl) = l°
Na+ + l°
Cl
–
(2