51问答网 > 求向硫酸铝中滴加氨水,向氢氧化铝中滴加盐酸的实验现象及化学方程式

求向硫酸铝中滴加氨水,向氢氧化铝中滴加盐酸的实验现象及化学方程式

2025-04-05 22:31:38
推荐回答（1个）
回答1：

向硫酸铝中滴加氨水出现沉淀，然后滴加氢氧化钠沉淀消失，又滴加盐酸，出现沉淀。
Al2(SO4)3+6NH3.H2O===2Al（OH)3+3(NH4)2SO4
至于直接在氢氧化铝中滴加HCL
溶解。
Al（OH)3+3HCl==AlCl3+3H2O

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