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  Home > JCE Print > Journal of Chemical Education > Issues > 2005  > June  >
In the Classroom
On Teaching Ionic Activity Effects: What, When, and Where?
Robert de Levie
Department of Chemistry, Bowdoin College, Brunswick, ME 04011
Cover
June 2005
Vol. 82 No. 6
p. 878
Abstract
Ionic activity effects modify many quantitative chemical relationships involving ions, including those describing equilibria, pH measurements, titrations, diffusional mass transport, and reaction rates. Some of the resulting activity corrections are reviewed, and it is argued that their subtlety requires that they be introduced late rather than early in the chemistry curriculum and then are treated in more detail than is now customary. It is illustrated that interionic effects often cannot be taken into account by merely replacing all ionic concentrations by the corresponding ionic activities.
More Information
*  Citation
 de Levie, Robert. J. Chem. Educ. 2005 82 878.
*  Keywords
 Acids / Bases; Aqueous Solution Chemistry; Curriculum; Electrochemistry; pH; Second-Year Undergraduate; Textbooks / Reference Books; Thermodynamics; Titration / Volumetric Analysis; Upper-Division Undergraduate
*  History
 Created:
Last Updated:		 April 27, 2005
May 6, 2005
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