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不與偏鋁酸根反應,與鋁離子先反應,因為生成的氫氧化鋁的溶度積小於一水合氨的電離常數,生成物總是向著使離子濃度變得更小的方向進行,不懂追問
這是高一化學,當然鋁離子和氫氧根離子比例是1:3時生成沉澱,當大於1:3時候就會生成偏鋁酸根,這裡氫氧根離子過量時,反映的比例就是1:4.如果解决了你的疑問,
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