2)(90 points) Calculate the pH and ion concentrations for following aqueous solutions using

a) assumption methods

b) (second degree equations)

c) exact numerical solutions (third degree equations)

5x10-4 M boric acid solution

7x10-3 M sodium acetate solution.

10-3 M of perchloric acid solution

Please look at the Ka values from table 4.1

TABLE 4-1 Reldity and Basicity Constents for Sabatances in Aquecus Solution at 25C