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有关电解质溶液中微粒浓度大小比较的试题,是各地高考中常见的题型,通常以选择题或填空题的形式出现,目的在于考查同学们思维的灵活性、深刻性及创造性.常见的题目有1种电解质溶液中或2种电解质溶液混合后,各种微粒浓度关系的判断.此类试题主要考查同学们对中学化学中3种平衡(即水的电离平衡、弱电解质的电离平衡、盐类水解平衡)的理解,解答此类问题的关键是要正确运用上述3种平衡
The questions related to the comparison of particle concentration in electrolyte solutions are commonly used in college entrance examinations. They usually appear in the form of multiple-choice questions or fill-in questions. The purpose is to examine the flexibility, depth, and creativity of students’ thinking. Common problems include: The determination of the relationship of various particle concentrations after mixing in one electrolyte solution or two electrolyte solutions. This test mainly examines the students’ balance of three kinds of middle school chemistry (ie, ionization balance of water, ionization balance of weak electrolytes, salts The understanding of hydrolysis equilibrium is the key to answer such questions is to correctly use the above three kinds of balance.