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A sample of potassium acetate, KCH3CO2 (M=98), of mass 4.9 g is used to prepare 500 mL of solution. CH3CO2–(aq) + H2O(l) → CH3COOH + OH–(aq) What is the pH of the solution? Equilibrium constant Kc= 5.6 x 10-10 a. 1 b. 7 c. 13 d. 5.12 e. 8.87
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