Professional paper
https://doi.org/10.15255/KUI.2019.055
Chemistry in Education:
Buffers in Education. II. Preparation and Use
Dario Dabić
orcid.org/0000-0003-1358-4925
; Faculty of Chemical Engineering and Technology University of Zagreb, Marulićev trg 19 10 000 Zagreb, Croatia
Damjan Petrin
orcid.org/0000-0001-6730-4795
; Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, 10 000 Zagreb, Croatia
Abstract
The text discusses how to choose buffers depending on the purpose, and how to prepare them in several ways. With the necessary understanding of acid dissociation constants and buffer mechanisms, it is meant to give the readers the correct approach when preparing desired buffer solutions by taking into account all factors that may affect the buffer system. Therefore, the text covers important concepts, and links them with their applications in the world of science and engineering. It also explains buffer capacity and its role, as well as the concept of ionic strength and how it affects the pH. At the end, explanations of buffers are summarized and some numerical problems are given to enable self-evaluation of the comprehension of the given subject.
This work is licensed under a Creative Commons Attribution 4.0 International License.
Keywords
preparation of buffers; buffer capacity; ionic strength; coefficient of activity; numerical problems; chemical education
Hrčak ID:
238048
URI
Publication date:
19.5.2020.
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