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 24)
In general, if an electrolyte on dissociation gives n+ cations and n–
anions then its limiting molar conductivity is given by:
L°m  = n+ l°
+ + n– l°
–
(2 25)
Here, l°
+ and l°
– are the limiting molar conductivities of the cation
and anion respectively The values of l° for some cations and anions at
298 K are given in Table 2