Abstract
The dissociation constant pKa of acetylacetone has been determined potentiometrically. The pKa value obtained is 9.40, indicating a weak acid. The stability constants of the complex compounds formed from the reaction of nickel (II) and copper (II) with acetylacetone determined using potentiometer are 6.32x1015 and 2.82x1014, respectively. Similarly, the number of acetylacetonato ligands coordinated to each metal ion determined potentiometrically is 3. Key words: Potentiometry, Acetylacetone, Dissociation and Stability Constants.
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