You are trying to dissolve ZnS (pKb = 2.5 x 10-22) in an aqueous solution. The dissolution enthalpy of ZnS is positive but small. Out of the following, which would NOT be a good way to increase the solubility of ZnS? (several possible answers) a)    Increase the temperature of the solution. b)    Add a base to the solution. c)    Increase the volume of the solution. d)    Add an acid to the solution. e)    Decrease the temperature of the solution.

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