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【毎日一問】理論基礎 2020.07.29

2020-07-29View Original

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この投稿は最後に、青涩年华によって2020年7月29日08:19に編集されました。
選択問題:各物質の濃度がすべて0.1 mol/dm³の以下の水溶液の中で、pH値が最も小さいのはどれか?
(θb(NH3)=1.77×10⁻⁵, Kθa(CH3COOH)=1.77×10⁻⁵)
(A) NH4Cl (B) NH3 (C) CH3COOH (D) CH3COOH+CH3COONa
答え:C
ヒント:解法の過程を説明できる人には追加の報酬があります。答えは返信で確認できます
Reply #22020-07-31
各物質濃度が0.1 mol/dm³の以下の水溶液中で、pH値が最も小さいのは:(C)CH3COOH

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