大学化学 >> 2017, Vol. 32 >> Issue (4): 76-78.doi: 10.3866/PKU.DXHX201611005

自学之友 上一篇    下一篇

HA-A型标准缓冲溶液用最简式计算精确pH的两种思路

唐明宇*()   

  • 发布日期:2017-04-20
  • 通讯作者: 唐明宇 E-mail:myciac@sina.com

Two Solutions of Accurate pH Calculation for HA-A Standard Buffer Solution by the Simplest Form

Ming-Yu TANG*()   

  • Published:2017-04-20
  • Contact: Ming-Yu TANG E-mail:myciac@sina.com

摘要:

介绍了HA-A型标准缓冲溶液用最简式计算精确pH的两种思路。经证明,两种思路的最终结果一致,并用实例验证了思路二的正确性,有助于进一步培养学习者的推导能力和加深学习者对pH计算公式的理解,也是对现行分析化学教材有益的补充。

关键词: 标准缓冲溶液, 精确pH计算, 活度系数, 最简式

Abstract:

The two solutions of accurate pH calculation for HA-A standard buffer solution by the simplest form were introduced. Results from the two approaches agreed well with each other, and solution #2 was validated by examples. The calculation can improve the deduction ability of the learners and enhance their comprehensive understanding of pH computational formulas, and also be a useful supplement for current analytical chemistry textbooks.

Key words: Standard buffer solution, Accurate pH calculation, Activity coefficient, The simplest form

MSC2000: 

  • G64