Teaching Acid-Base Equilibria by Using Log-log Diagrams

Chemical Education

Authors

  • Antonio Togni Department of Chemistry and Applied Biosciences, ETH Zürich, HCI H 105, Vladimir-Prelog-Weg 1, CH-8093 Zürich Switzerland

DOI:

https://doi.org/10.2533/chimia.2022.481

Keywords:

Acid-base equilibria, Distribution diagrams, Sillén diagrams, Graphical pH determination

Abstract

The purpose of this column consists in illustrating the utility of log-log diagrams for the graphical determination of the pH value of acid-base systems in dilute aqueous solution. This methodology allows to tackle systems going well beyond the case of mono- or diprotic acids, providing fast and accurate estimations of the pH. It is also argued that the use of so-called Sillén diagrams affords a better understanding of complex acid-base systems.
CHIMIA Vol. 76 No. 5 (2022): Medicinal Chemistry

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Published

2022-05-25

Issue

Vol. 76 No. 5 (2022): Medicinal Chemistry

Section

Columns, Conference Reports

Categories

License

Copyright (c) 2022 Swiss Chemical Society

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

[1]
A. Togni, Chimia 2022, 76, 481, DOI: 10.2533/chimia.2022.481.