試題詳解

12. Same as Problem 11, but calculate [H⁺] (in M) if 50.0 ml (total) of NaOH is added?
(A)1.9x10^-9 
(B)3.2x10^-9
(C)7.5x10^-9
(D)1.9x10⁻⁸
(E)3.6x10⁻⁸