大学化学 >> 2015, Vol. 30 >> Issue (2): 64-68.doi: 10.3866/pku.DXHX20150264

师生笔谈 上一篇    下一篇

一元强碱滴定一元弱酸溶液的林邦滴定曲线方程及其应用

乔成立   

  1. 齐齐哈尔大学应用技术学院 黑龙江齐齐哈尔 161006
  • 发布日期:2015-04-25

The Ringbom Equation for Titration of Monoprotic Acids and Its Application

Qiao Chengli   

  1. School of Applied Technology, Qiqihar University, Qiqihar 161006, Heilongjiang, China
  • Published:2015-04-25

摘要:

以林邦副反应思想为基础,用质子条件式PBE、物料平衡式MBE、滴定分数和条件稳定常数等知识推导出一元强碱滴定一元弱酸溶液的林邦滴定曲线方程,并用滴定曲线方程讨论了滴定开始至化学计量点时任意一点pH的计算.

关键词: 林邦方程, 副反应系数, 条件稳定常数

Abstract:

The Ringbom equation for titration of monoprotic acids was derived based on proton condition equation, mass balance equation, titrated fraction as well as the conditional stability constant. The developed Ringbom equation was applied to calculation of pH at any titrated fraction before reaching the stoichiometry point.

Key words: Ringbom equation, Side-reaction coefficient, Conditional stability constant

MSC2000: 

  • O6