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ERIC Number: EJ838165
Record Type: Journal
Publication Date: 2009-May
Pages: 2
Abstractor: As Provided
Reference Count: 2
ISBN: N/A
ISSN: ISSN-0021-9584
Controlled Synthesis of Two Copper Oxalate Hydrate Complexes: Kinetic versus Thermodynamic Factors--A Laboratory Experiment for Undergraduates
Cui, Ai-Li; Wei, Jing-Zhi; Yang, Jin; Kou, Hui-Zhong
Journal of Chemical Education, v86 n5 p598-599 May 2009
Two compounds, K[subscript 2][Cu(C[subscript 2]O[subscript 4])[subscript 2]] times 4H[subscript 2]O, 1, and K[subscript 2][Cu(C[subscript 2]O[subscript 4])[subscript 2]] times 2H[subscript 2]O, 2, were synthesized under controlled conditions. By controlling the concentration of the reaction solutions, it is possible to isolate a kinetic product 1 and a thermodynamic product 2. Of interest is that the tetrahydrate compound can be converted to the dihydrate analogue by partial dehydration either in the solid state or in solution. This illustrates the fact that reactions can proceed via two routes, which can be a difficult concept for students to understand. (Contains 2 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: jchemed@egpp.com; Web site: http://www.jce.divched.org
Publication Type: Journal Articles; Reports - Descriptive
Education Level: Higher Education
Audience: Teachers
Language: English
Sponsor: N/A
Authoring Institution: N/A