摘要
在分析化学教学中,质子条件式是酸碱反应重要内容,也是计算体系酸碱度的依据。我们分析了质子条件式教学中常见的书写方式,并提出了一种书写质子条件式新的思路和方法——解离平衡法。本方法以水的解离平衡为基础,代入溶液中氢离子和氢氧根离子的总浓度关系式即可写出质子条件式。此法简单易懂,可以应用于各种复杂的溶液体系,有助于学生理解质子平衡式的原理和提高书写正确率。
In Analytical Chemistry teaching,proton conditional formula is an important content of acid-base reaction,and also the basis to calculate pH of the system.A new way of writing the proton conditional formula was presented based on the equilibrium of water dissociation,and could be written by substituting the composition of[H+]and[OH-]in the solution.This method was easy to understand and could be applied to all kinds of complex solution systems,which was helpful for students to understand the principle of proton balance and improve the writing accuracy.
作者
赵继阳
刘思佳
杜攀
丁文雯
ZHAO Ji-yang;LIU Si-jia;DU Pan;DING Wen-wen(School of Environmental Science,Nanjing Xiaozhuang University,Jiangsu Nanjing 211171;School of Life Science and Chemistry,Jiangsu Second Normal University,Jiangsu Nanjing 211200,China)
出处
《广州化工》
CAS
2023年第2期309-311,321,共4页
GuangZhou Chemical Industry
基金
南京晓庄学院2020年教育教学研究与改革重点项目
南京晓庄学院2021年教育教学研究与改革项目(“陶行知教育思想研究”主题)。
关键词
解离平衡
质子条件式
质子平衡式
dissociation equilibrium
proton condition formula
proton equilibrium formula
