問題詳情
5. 若20克，密度為d g/ml的硝酸鈣溶液中有1克Ca2＋，則NO3－在水溶液中之體積莫耳濃度為？（Ca：40）
(A)d/400
(B)1.25d
(C)d/20
(D)2.5d
(A)d/400
(B)1.25d
(C)d/20
(D)2.5d
參考答案
答案：[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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