4.9 points The pKa of glycolic acid,which is a monoprotic acid,is 3.9.A 25.0 ml solution of glycolic acid is titrated with 35.8 mL of 0.020 M sodium hydroxide solution until the equivalence point. What is the pH of the solution at the equivalence point?
a) 5.10 b) 7.98 c) 8.72 d) 4.92 e) 9.08