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An analytical chemist is titrating 225.4 ml of a 0.8700M solution of butanoic acid (HC, H,Co.) with 210.9900M solution of KOH. The pK, of butanoic acid is 4.82. Calculate the pH of the acid solution after the chemist has added 101.2 ml of the KOH solution to it. Note for advanced students: you may assume the final volume equals the initial volume of the solution plus the volume of KOH solution added. Round your answer to 2 decimal places