wnat species ons/molecules) are present in the solution at the hanway titration toward the stoichiometric point? A 21.54-mL volume of 0.130 M NaOH is required to reach the stoichiometric point for the titration of 25.00 mL of a 0.112 M HCI solution. Would the titration of 25.00 mL of a 0.112 M CH3COOH solution require more, less, or the same volume of the 0.130 M NaOH solution? Explain. 2. he pKa for a weak aci in this experiment.