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Which solution has the highest pH? a) 0.1 M KCH3COO, Ka for CH3COOH is 1.8 x 10^-5 b) 0.1 M of KNO2, Ka for HNO2 is 4.5 x 10^-4 c) 0.1 M of KCl, Ka for HCl is VERY LARGE!! d) 0.1 M KClO, Ka for HClO is 3.5 x 10^-8