ling with centrated Example (Tutorial) ABAB The weak electrolyte AB dissociates to A and B, with a thermodynamic equi- librium constant K of 2 x 10-3 (a) Calculate the molar equilibrium constant Ke (b) Calculate the percent dissociation of a 1.0 × 104 M solution of AB in water and in the presence of a diverse salt of ionic strength 0.1, if the activity coefficients of A and B are 0.6 and 0.7, respectively, at = 0.1. K=