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a. Lactic Acid (C3H6O3), is a weak monoprotic acid. The pH of a .10M solution of lactic acide is 2.43. What are the values of Ka and pKa for lactic acid? b. Calculate the pH of a .10M HCN solution, which has a Ka = 1.4x10^-9 at 25C. Assume that the dissociation of HCN is negligible compared to its initial concentration.

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