問題詳情
25. 計算 0.1M的NH 4CN水溶液之pH值=( 46 )。（ log2=0.3，log7=0.85，NH 4 ＋Ka＝5.6×10－10，CN － Kb＝1.6×10 －5 ，H 2O K wR＝10 －14）
參考答案
答案：C
難度：簡單0.704981
統計：A(228),B(120),C(920),D(37),E(0)
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