Law of dilution

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Wilhelm Ostwald’s dilution law is a relationship between the dissociation constant and the degree of dissociation of a weak electrolyte (acids, bases).

Kp constant of protolysis
α degree of dissociation (or degree of protolysis)
c(A-) concentrations of anions
c(K+) concentration of cations
c0 overall concentration
c(KA) concentration of associated electrolyte


Concerning conductivity, this results in the following relation:

Kc constant of dissociation
equivalent conductivity
boundary conductivity
c concentration of electrolyte

de:Ostwaldsches Verdünnungsgesetz nl:Verdunningswet sr:Оствалдов закон



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