23. A compound has a pKa of 7.4. To 100 mL of a 1.0 M solution of this compound at pH 8.0 isadded 30
問題詳情
23. A compound has a pKa of 7.4. To 100 mL of a 1.0 M solution of this compound at pH 8.0 isadded 30 mL of 1.0 M hydrochloric acid. The pH value of resulting solution is: (A) 7.5 (B) 7.4 (C) 7.2 (D) 6.8 (E) 6.5