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  • Current: Jan 23, 2024

pKa

pKa is the negative log of the acid dissociation constant Ka.

pKa = -log10Ka

The strength of weak acids is expressed as pKa. The stronger the acid, the lower is its pKa value.


Definitions in the literature

  • The pKa value is the negative base -10 logarithm of the acid dissociation constant (Ka) of a solution [1].