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Question

What is Kohlrauch law . Give it's main application s ?

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Solution

Kohlrausch law:
The equivalent conductance of an electrolyte at infinite dilution (Λ ) is equal to the algebraic sum of equivalent conductance of cation (λ+ ) and anion (λ- ).
ΛElectrolyte = λ+ + λ-
Applications: 1) In the calculation of ''Λ'' of weak electrolyte.
2) To calculate "α" of weak electrolytes.
3) To calculate solubilities of sparingly soluble salts like BaSO4.

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