Ionic Equilibria in Aqueous Solutions of Zinc Bromide and the Related Heat Data

Department of Chemistry, Patna University, Patna-800 005 

Manuscript received 25 April 1980, accepted 26 July 1980

The dissociation constant of ZnBr⁺\( \rightleftharpoons\)Zn⁺⁺+Br^- has been determined potentio­metrically and has been found to be 0.2559, 0.0573, 0.0973 and 0.0339 at 5°, 15% 25° and 35° respectively. The heat of ionisation ∆ H of ZnBr⁺=Zn⁺⁺ +Br^- has been found to be +1331+100 cals/mole.