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15问答网 > 过量氨水和AlCl3反应最后是生成Al（OH）3还是AlO2-？

过量氨水和AlCl3反应最后是生成Al（OH）3还是AlO2-？

2025-03-28 16:23:57

推荐回答（3个）

回答1：

偏铝酸根的形式

一水合氨是可以电离出少量的OH-的，能够反应，过量说明OH-物质的量浓度大，白色沉淀是消失的，楼上几位都关注了碱性的强弱，但却没有注意浓度
答案没有错

回答2：

氨水的碱性不够强，无法和氢氧化铝反应，过量的氢氧化钠溶液才可以
AlCl3+3NH3·H20=3NH4Cl+Al(OH)3

回答3：

Al（OH）3

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