An analytical chemist is titrating 210.3 ml. of a 0.2400 M

Last updated: 7/31/2022

An analytical chemist is titrating 210.3 ml. of a 0.2400 M solution of benzoic acid (HC6H5CO₂) with a 0.9700 M solution of KOH. The PK, of benzoic acid is 4.20. Calculate the pH of the acid solution after the chemist has added 41.95 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.