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饱和食盐水为什么能吸收氯化氫？

返回打印发布时间：2024/1/19 点击：9035

饱和食盐水能够吸收氯化氫，主要基于以下幾個原因：

氯化氫在饱和食盐水中的溶解度较大，因此易溶于饱和食盐水。

氯气在饱和食盐水中溶解度较小，因此氯气不易溶于饱和浓盐酸。

氯化氫分子与水分子和NaCl分子反应，并与Na+和Cl-离子发生反应，形成离子复合物NaCl·HCl。

饱和食盐水能降低氯气在水中的溶解度，减小氯气的溶解损失。

然而，当氯化氫分子的数量超过了饱和食盐水可以吸收的限度时，剩余的氯化氫分子将无法被吸收，这可能会导致食盐水溶液的酸度增加。

以上内容仅供参考，如需获取更多信息，建议查阅化学书籍或咨询化学专家。

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