A 0.1000 M NaOH solution was employed to titrate a 25.00-mL solution that contains 0.1000 M HCL and 0.0500 M HOAc. Find out the pH of the solution after 27.50mL of NaOH is added. Ka HOAc = 1.75*10-5.
Explain what's the solution pH at the second equivalence point?