Assume you dissolve 0.235 g of the weak acid benzoic acid, C_6 H_5 CO_2 H, in enough water to make 8.00 times 10^2 mL of solution and then titrate the solution with 0.158 M NaOH C_6 H_5 CO_2 H(aq) + OH^- (aq) rightarrow C_6 H_5 CO_2^- (aq) + H_2 O (l) What are the concentrations of the following ions at the equivalence point? Na^+ H_3 O^+, OH^- C_6 H_5 CO^-_2 M Na^+ M H_3 O^+ M OH^- M C_6 H_5 CO_2 What is the pH of the solution?