Question: 18 9 = 10 pH = 0 = 11 = 12 X 13 = 14 15 16 17 18 An analytical chemist is titrating 249.4

18 9 = 10 pH = 0 = 11 = 12 X 13 = 14 15 16 17 18 An analytical chemist is titrating 249.4 mL of a 0.3000M solution of benzoic acid (HC HCO) with a 0.2700M solution of NaOH. The p Kof benzoic acid is 4.20. Calculate the pH of the acid solution after the chemist has added 84.68 mL of the NaOH solution to it. Note for advanced students: you may assume the final volume equals the initial volume of the solution plus the volume of NaOH solution added. Round your answer to 2 decimal places. 19 F 20 E

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