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  Home > JCE Print > Journal of Chemical Education > Issues > 2000  > February  >
In the Classroom
The Relationship between Stoichiometry and Kinetics
Sidney Toby
Department of Chemistry, Rutgers University, Piscataway, NJ 08854
Cover
February 2000
Vol. 77 No. 2
p. 188
Abstract
A mechanism consisting of several elementary steps may not have a unique stoichiometry. Even if one exists, a linear combination of the steps will not in general lead to a correct formulation of the overall stoichiometry. We consider the time dependence of stoichiometry and show how it can be obtained. A linear combination of the rate expressions for the steps, together with the use of the steady-state assumption for the concentration of reactive intermediates, will lead to an unambiguous expression for the time-dependent stoichiometry of the system.

See Letter re: this article.
More Information
*  Citation
 Toby, Sidney. J. Chem. Educ. 2000 77 188.
*  Keywords
 Physical Chemistry; Kinetics; Mechanisms; Teaching / Learning Aids; Stoichiometry
*  History
 Created:
Last Updated:		 January 5, 2000
April 15, 2005
Link to Letter added (April 2004).
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