問題詳情
25.水中氯的濃度為1.42 ppm，換算為莫耳濃度應為多少？（原子量：Cl＝35.5）
(A) 2×10－1 M
(B) 1.42×10－2 M
(C) 1.42×10－3 M
(D) 2×10－5 M
(A) 2×10－1 M
(B) 1.42×10－2 M
(C) 1.42×10－3 M
(D) 2×10－5 M
參考答案
答案：[無官方正解]
難度：非常困難0
統計：A(0),B(0),C(0),D(0),E(0)
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