HOAc + NAOH = OAc- + H2O 0.1 0.03 0.07 0 0.03 pH =pKa + 0.03/0.07 = 4.75 + 0.4285 = 5.1785 Solution HOAc + NAOH = OAc- + H2O 0.1 0.03 0.07 0 0.03 pH =pKa + 0.03/0.07 = 4.75 + 0.4285 = 5.1785.Read less