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辨析:通过生成金属氢氧化物沉淀的方法除去溶液中的金属离子,必须将溶液调到碱性
辨析:通过生成金属氢氧化物沉淀的方法除去溶液中的金属离子,必须将溶液调到碱性
2025-03-26 03:52:55
推荐回答(1个)
回答1:
错的
Ksp金属氢氧化物,沉淀所需的pH就越小
比如FeOH)3
它可以在溶液呈酸性(pH约等于2.7左右)时即可沉淀完全
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