posted by cathy .
A buffer solution was prepared by mixing 442 mL of 0.181 M NaOCl and 139 mL of 0.421 M HOCl. Calculate the pH of the solution given that Ka (HOCl) is 3.2 x 10-8.
See your first post. Same song, second verse. You must go through and determine the concns of the acid and base.