文章基本信息

标题：An Algebraic Derivation of Buffer Capacity
本地全文：下载
作者：Matthew S. Fox ; Joshua W. Greenberg ; Jake M. Trookman 等
期刊名称：World Journal of Chemical Education
印刷版ISSN：2375-1665
电子版ISSN：2375-1657
出版年度：2015
卷号：3
期号：5
页码：124-126
DOI：10.12691/wjce-3-5-4
出版社：Science and Education Publishing
摘要：Acid-base chemistry is becoming evermore infamous amongst new chemistry students—especially specialized topics such as buffers and their capacities. Currently, introductory chemistry students struggle to fully understand the formal definition of buffer capacity. In this manuscript, we algebraically derive a new and simple mathematical representation for buffer capacity from the Henderson-Hasselbalch equation. We find that three buffer capacity formulas evolve—each with a specific application depending on the concentration-ratio of weak acid or base to its corresponding conjugate.
关键词：analytical chemistry; first-year undergraduate/general; high school/introductory chemistry; problem solving/decision making; acids-bases