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【打算】我打算用浓硝酸和碳酸钙制取硝酸钙,并蒸发结晶
Floor 1
巨大八爪鱼
10/21/12 9:38
rt
Floor 2
HSbF6Onizuka
10/21/12 9:39
如果把碳酸钙换成亚硫酸钙,那么实验会失败。
Floor 3
巨大八爪鱼
10/21/12 9:40
回复:2楼
为什么
Floor 4
HSbF6Onizuka
10/21/12 9:41
回复:3楼
亚硫酸钙会被氧化为硫酸钙。
Floor 5
巨大八爪鱼
10/21/12 9:42
哦,H+不能与SO4结合放出气体
Floor 6
巨大八爪鱼
10/21/12 9:43
复分解反应不能发生
Floor 7
HSbF6Onizuka
10/21/12 9:43
硝酸根在酸性环境下氧化性强
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