, concentration c ® zero) electrolyte dissociates completely (a =1),
but at such low concentration the conductivity of the solution is so low
that it cannot be measured accurately Therefore, L°m  for weak electrolytes
is obtained by using Kohlrausch law of independent migration of ions
(Example 2 8) At any concentration c, if a is the degree of dissociation
Ion
lllll0/(S cm2mol–1)
Ion
lllll 0/(S cm2 mol–1)
H+
349