問題詳情

20. You have 500.0 mL of a buffer solution containing 0.20 M acetic acid (CH3COOH) and 0.30 M sodiumacetate (CH3COONa). What will the pH of this solution be after the addition of 20.0 mL of 1.00 M NaOHsolution?


(A) 4.41
(B) 4.74
(C)4.56
(D) 4.92
(E) 5.07

參考答案

答案：E
難度：計算中-1
書單：沒有書單，新增