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230问答网 > 为什么饱和食盐水或氯化钾可以除去率其中的氯化氢？请不要复制答案！！谢谢

为什么饱和食盐水或氯化钾可以除去率其中的氯化氢？请不要复制答案！！谢谢

2025-03-28 16:30:06

推荐回答（2个）

回答1：

如果氯气溶于水,则存在如下平衡:
Cl2(气态)= Cl2(溶液态) 可逆溶于水的氯气会部分与水反应,也是一个可逆过程:
Cl2 + H2O = H+ + Cl- + HClO 可逆
如果是把氯气通往饱和的氯化钠溶液,由于氯化钠是饱和的,就是说溶液中的氯离子浓度是饱和的,会使上述的平衡都向左移动.就相当于是氯气不会溶于水了.

回答2：

HCL极易溶于水..
CL2应该只是和水1:2互溶吧..
而且CL2溶于水会生成HCL.HCLO..用饱和食盐水可以降低CL2的溶解度...
所以把混有HCL的CL2通入饱和食盐水里..可以几乎不消耗CL2而过滤掉HCL...

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