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有关强酸、强碱溶液中的[H~+]、[OH~-]和PH值的计算中,常遇到以下几种错误解法,现分析如下: 例1 将pH=5的盐酸溶液稀释10000倍,求溶液的pH值。错解一:原溶液pH=5∴[H~+]原=10~5M 稀释10000倍以后:
In the calculation of [H~+], [OH~-] and PH values in strong acid and alkali solutions, the following error solutions are often encountered. The analysis is as follows: Example 1 Dilute HCl solution with pH=5 to 10000. Times, find the pH of the solution. Misunderstanding one: the original solution pH = 5 ∴ [H ~ +] original = 10 ~ 5M diluted 10000 times: