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为什么给纯水加热会使pH值减小
更新时间: 2020-07-03 00:00:00  

温度越高,水的电离程度越大,氢离子浓度和氢氧根离子浓度增大,但纯水中离子的浓度始终相等,即氢离子浓度和氢氧根离子浓度的乘积始终相等,而PH为氢离子浓度取负对数,它浓度增加,故当水的离子积变大时,pH值会减小,但仍呈中性。

关键词: 为什么 纯水 加热 ph 减小

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