化学工艺流程题中关于溶度积计算的解题模型

Solution Model of Solubility Product Calculation in ChemicalProcess Flow Problems

近年来高考化学工艺流程试题与生产生活的联系越来越密切,而试题中考查的内容也越发全面、具体。其中,化学工艺流程试题中有关化学计算的考点有溶度积计算、滴定计算、平衡常数计算等,本文主要讨论试题中有关溶度积计算的解题模型。化学工艺流程试题中溶度积计算常考的内容有沉淀生成、溶液离子浓度、离子浓度之比等。将常考点的解题步骤进行整理、汇总,得出相应解题模型三个,并用试题进行模型应用。

In recent years,the chemical process test questions in college entrance examination are more and more closely related to production and life,and the content of the examination is more comprehensive and specific.Among them,the chemical calculation points in the chemical process test questions include solubility product calculation,titration calculation,balance constant calculation,etc.The solution model of solubility product calculation in the testwas mainly discussed.The content of the calculation of solubility product in chemical process test included precipitation generation,solution ion concentration and ion concentration ratio.The steps of solving the questions of the common test pointswere summarized,three corresponding problem solving modelswere obtained,and the model with the test questionswasapplied.