問題詳情

8. Ammonium benzoate is a salt formed from ammonia (NH3) and benzoic acid(C6H5COOH). Calculate the pH of a 0.10 M solution of ammonium benzoate at 25℃. (Ka = 6.4 x

for C6H5COOH, Kb = 1.8 x

for NH3； log2 = 0.301； 10g3 =0.477； log7 = 0.845)
(A) 4.74
(B) 5.96
(C) 6.73
(D) 7.28
(E) 8.04

參考答案

答案：C
難度：計算中-1
書單：沒有書單，新增