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15问答网 > 用200ML工业乙醇（质量含量95%）制备无水乙醇时，理论上需要氧化钙多少克？

用200ML工业乙醇（质量含量95%）制备无水乙醇时，理论上需要氧化钙多少克？

2025-03-24 21:40:48

推荐回答（2个）

回答1：

用200ML工业乙醇（质量含量95%）制备无水乙醇时，理论上需要氧化钙31.2克

因为CaO+H2O=Ca(OH)2 又95％工业酒精200ml，即含水5％为10ml为10g，为10/18mol，所以需CaO的质量为56*10/18=31.2g

回答2：

都是氯化钙过量的,似乎没有认真算过,理论量在实际操作中是不能得到无水乙醇的!

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