全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
-  2020 

Buffers in Education. I. Measuring the pH and the Fundamentals of Buffer Theory

DOI: 10.15255/KUI.2019.054

Keywords: buffers, pH, glass electrode, pH meter, Henderson-Hasselbalch equation, chemical education

Full-Text   Cite this paper   Add to My Lib

Abstract:

Sa?etak Buffers are of high importance for pH measurement and control, which is crucial in many everyday scientific and industrial activities. The aim of this article was to elucidate the physicochemical parameters of buffers. Explained are the process and background of pH electrode calibration, as are described the problems that may arise in pH measurement, and their solutions. The focus of this article is the application and assessment of this knowledge in education through examples and numerical problems. The practical examples facilitate the learning of basic concepts related to pH and buffers. We clarify the correct definition of pH value, the Henderson-Hasselbalch equation and its limitations, the use of visual indicators with buffers, the connection between Le Chatelier’s principle and buffers, and what is important in pH measurement. A special mention is given to the influence of temperature in pH electrode calibration, pH measurement, and expressing the pH value. Finally, we suggest how to further improve the students’ knowledge and skills through questions on problems related to pH value and buffers. This work is licensed under a Creative Commons Attribution 4.0 International License

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133