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ERIC Number: EJ829107
Record Type: Journal
Publication Date: 2008-Aug
Pages: 3
Abstractor: As Provided
Reference Count: 13
ISSN: ISSN-0021-9584
Kinetics and Mechanism of Iodide Oxidation by Iron(III): A Clock Reaction Approach
Bauer, Jurica; Tomisic, Vladislav; Vrkljan, Petar B. A.
Journal of Chemical Education, v85 n8 p1123-1125 Aug 2008
A simple method for studying the kinetics of a chemical reaction is described and the significance of reaction orders in deducing reaction mechanisms is demonstrated. In this student laboratory experiment, oxidation of iodide by iron(III) ions in an acidic medium is transformed into a clock reaction. By means of the initial rates method, it is found that the reaction is second order with respect to iodide and first order with respect to iron(III) ions. Having established the rate law, the students are encouraged to propose a possible mechanism for the reaction investigated. (Contains 4 figures.)
Division of Chemical Education of the American Chemical Society. Subscription Department, P.O. Box 1267, Bellmawr, NJ 08099-1267. Tel: 800-691-9846; Tel: 856-931-5825; Fax: 856-931-4115; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Descriptive
Education Level: Higher Education
Audience: Teachers
Language: English
Sponsor: N/A
Authoring Institution: N/A