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ERIC Number: EJ913060
Record Type: Journal
Publication Date: 2010-Jan
Pages: 3
Abstractor: As Provided
Reference Count: 6
ISBN: N/A
ISSN: ISSN-0021-9584
Wash Bottle Laboratory Exercises: Iodide-Catalyzed H[subscript 2]O[subscript 2] Decomposition Reaction Kinetics Using the Initial Rate Approach
Barlag, Rebecca; Nyasulu, Frazier
Journal of Chemical Education, v87 n1 p78-80 Jan 2010
A wash bottle water displacement scheme is used to determine the kinetics of the iodide-catalyzed H[subscript 2]O[subscript 2] decomposition reaction. The reagents (total volume 5.00 mL) are added to a test tube that is placed in a wash bottle containing water. The mass of the water displaced in [approximately]60 s is measured. The reaction is first order in H[subscript 2]O[subscript 2] and first order in I[superscript -]. The average rate constant reported by students is 0.0112 [plus or minus] 0.0002 M[superscript -1] s[superscript -1] (N = 17) at [approximately]20 [degree]C. (Contains 5 tables and 3 figures.)
Division of Chemical Education, Inc and ACS Publications Division of the American Chemical Society. 1155 Sixteenth Street NW, Washington, DC 20036. Tel: 800-227-5558; Tel: 202-872-4600; e-mail: eic@jce.acs.org; Web site: http://pubs.acs.org/jchemeduc
Publication Type: Journal Articles; Reports - Evaluative
Education Level: Higher Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A