GeoGebra软件在“绘制酸碱滴定曲线”中的教学应用探究  

Study on Application of GeoGebra in Plotting Titration Curves of Acids and Bases

作　　者：崔伟 栾锋[1] 刘珊珊 冯凯 庄旭明[1] 何涛[1] CUI Wei;LUAN Feng;LIU Shan-shan;FENG Kai;ZHUANG Xu-ming;HE Tao(College of Chemistry&Chemical Engineering,Yantai University,Shandong Yantai 264005,China)

机构地区：[1]烟台大学化学化工学院,山东烟台264005

出　　处：《广州化工》2023年第23期113-115,共3页GuangZhou Chemical Industry

基　　金：烟台大学教学改革研究项目(jyxm2021015)。

摘　　要：滴定曲线是分析化学中滴定分析部分重要的教学内容,其中包含大量的函数模型和变量分析。本文巧用GeoGebra软件绘制酸碱滴定曲线,并利用其特有的动态演示功能,可以直观地将分析浓度、解离常数等对滴定曲线形状和滴定突跃大小的影响展示给学生。此外,本文设计了pKa对强碱滴定一元酸滴定突跃大小影响和二元酸的滴定曲线两个课堂教学实践内容,以帮助学生更好地理解并掌握酸碱滴定原理。Tirtration curve is an important part of titration principle in Analytical Chemistry,containing a huge number of function models and analysis of variables.By using GeoGebra to plot titration curves of acids and bases,with its capablility of dynamic presentation,the effect of concentration and dissociation constants on the shape of titration curves and jump rang could be shown to students,visually.Besides,two teaching sessions were designed to help students gain a better undetanding of the basic principle of acid-base titration:the effect of pKa on the titration of a strong base with a monoacid,and the titration curve of a strong base with a dibasic acid.

关 键 词：GeoGebra软件 动态演示 分析化学 酸碱滴定曲 

分 类 号：O651[理学—分析化学]