18. A 0.15 M solution of a weak acid is 3.0% dissociated. The Ka of the acid is calculated to be .(A
問題詳情
18. A 0.15 M solution of a weak acid is 3.0% dissociated. The Ka of the acid is calculated to be . (A) 3.5 × 10-4 (B)4.2 × 10-3 (C) 1.4 × 10-4 (D) 2.4 × 10-2 (E)3.6 × 10-3