pH of Acid Buffer Calculator

This Calctown Calculator calculates the pH of an acid buffer solution.

The default value of Kw is taken to be 10-14 at 250C;

HA(concentration of acid)

mol/dm³

A-(conjugate base of acid)

mol/dm³

Ka(ionisation constant of acid)

mol/dm³

H+(hydrogen ion concentration)

mol/dm³

pH of buffer

where

A- is conjugate base of weak acid

Ka is ionisation constant of acid

H+ is hydrogen ion concentration