强碱滴定一元弱酸突跃范围的计算  

Calculation of Abrupt Change Range for Titration of Weak Acid by Strong Base

作　　者：柳玉英 王平 刘青 蔺红桃 肖海滨 LIU Yu-Ying;WANG Ping;LIU Qing;LIN Hong-Tao;XIAO Hai-Bin(School of Chemistry and Chemical Engineering,Shandong University of Technology,Zibo 255049,China)

机构地区：[1]山东理工大学化学化工学院

出　　处：《化学教育（中英文）》2019年第22期88-90,共3页Chinese Journal of Chemical Education

基　　金：山东省教学改革研究项目（M2018X222）;山东理工大学教学团队建设项目

摘　　要：针对现有教材及文献对弱酸滴定计量点附近某些不甚合理的简化处理过程以及某些值得商榷的结论,根据滴定弱酸计量点附近溶液的实际组成,推导了合理的、适用任何情况的强碱滴定一元弱酸的突跃范围计算公式,从而给出了一元弱酸被准确滴定的判据。Due to some of the unreasonable simplification and conclusion in some textbooks and literatures for the calculation of abrupt change range when weak acid is titrated, a more accurate formula was deduced by taking account of the actual composition of the solution near the stoichiometric point,and the criteria for the accurate titration of weak acid was obtained.

关 键 词：弱酸滴定 突跃范围 准确滴定的判据 

分 类 号：O65[理学—分析化学]