A 100.0-mL aliquot of 0.100 M diprotic acid H2A (pK1 = 4.00, pK2 = 8.00) was titrated with 1.00 m NaOH. Find the pH at the following volumes of base added and make a graph of pH versus Vb: Vb = 0, 1, 5, 9, 10, 11, 15, 19, 20, and 22 mL

Answer 1

Patrick, Meg, Sandy,....
This is done the same way as the weak acid except you work two problems. One until you have titrated the first acid, then start titrating the second acid. Post your work if you get stuck.