单项选择题
在0.25mol/L次氯酸(HClO)的Ka=3.2×10-8溶液中,Ch+和电离度分别为:()
A.8.9×10-5mol/L,0.036%
B.8.0×10-9mol/L,3.2×10-6%
C.8.0×10-9mol/L,0.036%
D.8.9×10-5mol/L,3.2×10-6%
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