Say, for example, that you had prepared a Buffer C, in which you mixed 16.406 g of sodium acetate. NaC_2H_3O_2, with 100.0 mL of 1.0 M acetic acid Calculate the initial pH of Buffer C. b. You add 5.0 mL of 0.5 M NaOH solution to each of Buffer B and Buffer C. Predict which buffer's pH would change less? Explain. Draw a titration curve of an acid with a base. Mark on the graph a part of the curve corresponding to the buffering condition of the acid.