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排水法收集氧气
更新时间: 2021-05-24 12:36:34  

1、排水法收集氧气的操作是在集气瓶中盛满水,盖上玻璃片,然后将集气瓶倒置在水槽中,当集气瓶中出现连续均匀的气泡时,将导气管伸入集气瓶口下,在气泡进入集气瓶,水被排出,此时所收集到的气体即为氧气。

2、排水法,即排水收集气体法,在实验化学中是一种收集气体的方法。在气体不与水反应、不易溶于水时,用此方法。

关键词: 排水 收集 氧气

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