問題詳情
35.一溶液中CN－及CH3COO－的莫耳濃度相同，加過氯酸於此溶液中直到H＋莫耳濃度等於10－4 M時，下列各項關係何者正確？（HCN之Ka＝4×10－10，CH3COOH之Ka＝1.8×10－5）
(A) [CN－]＝[CH3COO－]
(B) [CH3COOH]＞[HCN]
(C) [CH3COO－]＜[CN－]
(D)＞
(E)＋＝0.180
(A) [CN－]＝[CH3COO－]
(B) [CH3COOH]＞[HCN]
(C) [CH3COO－]＜[CN－]
(D)＞
(E)＋＝0.180
參考答案
答案：D,E[無官方正解]
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)
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