The pKa Values of Water in Water: A Long-Standing, Tiresome, yet Soon Forgotten Issue?
Chemical Education
DOI:
https://doi.org/10.2533/chimia.2024.167Keywords:
Acid-base equilibria, Acitvity, General chemistry, pKa of H+aq, pKa of water, ThermodynamicsAbstract
The pKa values of water and the hydrogen ion (proton) in water are 14 and 0, respectively. Yet, many textbooks of general, organic, and, to a lesser extent, inorganic chemistry provide the incorrect values 15.74 and -1.74, respectively. This column briefly introduces the long-standing issue of these two different pairs of values, the consequences it bears when teaching general chemistry, and expresses the hope that it may be solved soon.
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Published
2024-03-27
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Copyright (c) 2024 Swiss Chemical Society
This work is licensed under a Creative Commons Attribution 4.0 International License.
How to Cite
[1]
A. Togni, Chimia 2024, 78, 167, DOI: 10.2533/chimia.2024.167.