The molal solubilities of AgCl and BaSO4 are 1.34 x 10^-5 mol/kg and 9.51 x 10^-4 mol/kg respectively. Calculate the solubility constants, a) neglecting activities (or assuming that the activity coefficients are unity) and b) using the Debye-Huckel limiting law to calculate the activity coefficients. Calculate the percentage difference between the a) and b) solubility products for each