水蒸气有PH值吗?是多少?水蒸气有PH值吗?有的话是多少?看到有一些说蒸馏水的PH值不是7,那么用这种蒸馏水产生的水蒸气PH值是不是与蒸馏水的PH值一致呢?
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![水蒸气有PH值吗?是多少?水蒸气有PH值吗?有的话是多少?看到有一些说蒸馏水的PH值不是7,那么用这种蒸馏水产生的水蒸气PH值是不是与蒸馏水的PH值一致呢?](/uploads/image/z/10959956-44-6.jpg?t=%E6%B0%B4%E8%92%B8%E6%B0%94%E6%9C%89PH%E5%80%BC%E5%90%97%3F%E6%98%AF%E5%A4%9A%E5%B0%91%3F%E6%B0%B4%E8%92%B8%E6%B0%94%E6%9C%89PH%E5%80%BC%E5%90%97%3F%E6%9C%89%E7%9A%84%E8%AF%9D%E6%98%AF%E5%A4%9A%E5%B0%91%3F%E7%9C%8B%E5%88%B0%E6%9C%89%E4%B8%80%E4%BA%9B%E8%AF%B4%E8%92%B8%E9%A6%8F%E6%B0%B4%E7%9A%84PH%E5%80%BC%E4%B8%8D%E6%98%AF7%2C%E9%82%A3%E4%B9%88%E7%94%A8%E8%BF%99%E7%A7%8D%E8%92%B8%E9%A6%8F%E6%B0%B4%E4%BA%A7%E7%94%9F%E7%9A%84%E6%B0%B4%E8%92%B8%E6%B0%94PH%E5%80%BC%E6%98%AF%E4%B8%8D%E6%98%AF%E4%B8%8E%E8%92%B8%E9%A6%8F%E6%B0%B4%E7%9A%84PH%E5%80%BC%E4%B8%80%E8%87%B4%E5%91%A2%3F)
水蒸气有PH值吗?是多少?水蒸气有PH值吗?有的话是多少?看到有一些说蒸馏水的PH值不是7,那么用这种蒸馏水产生的水蒸气PH值是不是与蒸馏水的PH值一致呢?
水蒸气有PH值吗?是多少?
水蒸气有PH值吗?有的话是多少?看到有一些说蒸馏水的PH值不是7,那么用这种蒸馏水产生的水蒸气PH值是不是与蒸馏水的PH值一致呢?
水蒸气有PH值吗?是多少?水蒸气有PH值吗?有的话是多少?看到有一些说蒸馏水的PH值不是7,那么用这种蒸馏水产生的水蒸气PH值是不是与蒸馏水的PH值一致呢?
pH值,亦称氢离子浓度指数,是溶液中氢离子活度的一种标度,也就是通常意义上溶液酸碱程度的衡量标准.这个概念是...通常情况下,pH值是一个介于0和14之间的数,当pH7的时候,溶液呈碱性,当pH=7的时候,溶液中性.
就是说,溶液才有pH值,水蒸气是没有pH值的.
一般蒸馏水pH是7的,最多有一点小偏差.而蒸发后,氢离子是不会蒸发的,所以是产生不了pH值的.
有。但肯定小于7,因为温度增高,水的电离度增大,水中H离子增多。因此肯定PH小于7
由于水的微弱电离,水中有一定量的H+,所以有PH值。水电离受温度的影响,温度越高,电离程度越大,PH值相应越小。水蒸汽的温度为100摄氏度,此时水的PH值为6,但注意水仍为中性。以PH值是否为7判断酸碱性,只在常温(即20-25摄氏度)下适用.
有,但小于7
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