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题文

将pH=5的H2SO4溶液稀释1 000倍后,溶液中SO浓度与H浓度的比值约为

A.1∶10 B.1∶1 C.1∶2 D.1∶20
科目 化学   题型 选择题   难度 中等
知识点: 水的电离
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