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溶液中离子浓度大小这一类型题,是高考热点。决定溶液中离子浓度大小的因素很多,如物质的量、溶解性、电离度、盐类的水解等。因而溶液中离子浓度的大小比较问题所涉及的知识容量大,思维空间开阔,对学生来说是个难点,要解决这类试题,主要从“三个守恒”角度考虑。
The type of ion concentration in the solution is the hot spot of college entrance examination. There are many factors that determine the concentration of ions in solution, such as the amount of material, solubility, degree of ionization, and hydrolysis of salts. Therefore, the comparison of the ion concentration in the solution involves a large amount of knowledge and the openness of the thinking space is a difficult point for students. To solve this kind of questions, it is mainly considered from the perspective of “three conservations”.