DETERMINATION OF EQUILIBRIUM CONSTANTS OF ACETIC ACID FROM RESULT OF POTENTIOMETRIC TITRATION METHOD

Abstract

   Acid dissociation constants of acetic acid were determined from pH values ofpotentiometric titration. The algorithm is established by combining values ofpotentionmetric titration of only two solutions: strong acid HCl and a mixture ofcloride acid and acetic acid. Because of the simplicity of the algorithm, iterativecalculation is not required. Therefore, complex calculation programme is notnecessary. The result shows a good correlation between experimentally determinedpKa values and the values made publicly in reference material.Keyword: equilibrium constants, acetic acid, potentiometric titration.