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  Home > JCE Print > Journal of Chemical Education > Issues > 2001  > April  >
In the Laboratory
Class Projects in Physical Organic Chemistry: The Hammett Equation
Peter S. Marrs
Department of Chemistry, University of Victoria, Victoria, BC V8W 3P6, Canada
Cover
April 2001
Vol. 78 No. 4
p. 527
Abstract
This paper provides a brief introduction to the Hammett equation. A laboratory experiment is described that requires students to determine the pKa of three para-substituted phenols through the use of UV-spectroscopy. A student's individual data are combined with other students' data to provide a class set. The students analyze the class set of data to determine whether sp or sp- is more appropriate for the reaction studied, and they also determine r for the reaction.
Supplement
Instructions for students and notes for the instructor are available.
*  Contents JCE2001p0527W.wpd (Word Perfect)
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More Information
*  Citation
 Marrs, Peter S. J. Chem. Educ. 2001 78 527.
*  Keywords
 AcidÐBase Chemistry; Collaborative / Cooperative Learning; Laboratory Computing / Interfacing; Organic Chemistry; UV-Vis Spectroscopy
*  History
 Created:
Last Updated:		 March 2, 2001
August 31, 2005
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