9. A 0.050 M solution of the salt NaB has a pH of 9.00. The [OH-] of a 0.010 M solution of HB is thu
問題詳情
9. A 0.050 M solution of the salt NaB has a pH of 9.00. The [OH-] of a 0.010 M solution of HB is thus __________M. (A)4.6 × 10-11 (B) 4.5 × 10-6 (C)3.0 × 10-9 (D) 2.2 × 10-4 (E)2.2 × 10-5