Kohlrausch’s law of independent ionic migration

When the limiting molar conductivities are to be obtained for a series of ions in a given solvent, the first step is to get the limiting molar conductivity of an ion by one of the above methods. Then, the limiting molar conductivities for other ions can be obtained sequentially by applying Kohlrausch s law of independent ionic migration (Section 5.8). 

If Kohlrausch s law of independent ionic migration is applicable to solutions of appreciable concentration, as well as to infinite dilution, as actually appears to be the case, the equivalent conductance of an electrolyte MA may be represented by an equation similar to the one on page 57, viz.. 

Kohlrausch s law of independent ionic migration states that the molar conductivity at infinite dilution, A°, is given by the sum of the values for its ionic components, A + and. ... 

At the infinite dilution limit (c—>0) the dissociation is complete and the ion mobility only depends on the ion-solvent interactions and file ionic and the molar conductivities reach their infinite dilution values X° and A°, respectively. In fliis limit the Kohlrausch s law of independent ion migration (Kohlrausch, 1898)... 

According to Kohlrausch s law of the independent migration of ions, the total molar conductivity of an electrolyte (made of v+ cations and v anions e.g., v+ = 1 and V = 2 for CaClz in water) can be expressed as the summation of ionic... 

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