Chapter 7, Problem 55E

A solution is prepared by dissolving 0.56 g of benzoicacid ${\text{(C}}_{\text{6}}{\text{H}}_{\text{5}}{\text{CO}}_{\text{2}}\text{H,}{K}_{\text{a}}\text{=6}{\text{.4×10}}^{\text{-5}}\text{)}$ in enough waterto make 1.0 L of solution. Calculate $\left[{\text{C}}_{\text{6}}{\text{H}}_{\text{5}}{\text{CO}}_{\text{2}}\text{H}\right]$ , ${\text{[C}}_{\text{6}}{\text{H}}_{\text{5}}{\text{CO}}_{\text{2}}{}^{\text{–}}\left]\text{, }\right[{\text{H}}^{\text{+}}\left]\text{, }\right[{\text{OH}}^{\text{–}}\text{]}$ , and the pH of this solution.