ERIC Number: EJ1048339
Record Type: Journal
Publication Date: 2014-Dec
Abstractor: As Provided
A Stopped-Flow Kinetics Experiment for the Physical Chemistry Laboratory Using Noncorrosive Reagents
Prigodich, Richard V.
Journal of Chemical Education, v91 n12 p2200-2202 Dec 2014
Stopped-flow kinetics techniques are important to the study of rapid chemical and biochemical reactions. Incorporation of a stopped-flow kinetics experiment into the physical chemistry laboratory curriculum would therefore be an instructive addition. However, the usual reactions studied in such exercises employ a corrosive reagent that can over time cause damage to sensitive and expensive components of a stopped-flow apparatus. The reduction of the dye 2,6-dichlorophenolindophenol by L-ascorbic acid at a pH of 8.5 is a reaction that provides accurate and reproducible data in the physical chemistry laboratory. Furthermore, these reagents are noncorrosive and protect instrumentation from damage.
Descriptors: Laboratory Experiments, Kinetics, Chemistry, Science Activities, Teaching Methods, Educational Practices, Undergraduate Students, Laboratory Safety, Scientific Concepts, Scientific Methodology, Scientific Principles, Science Education
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: firstname.lastname@example.org; Web site: http://pubs.acs.org/jchemeduc
Publication Type: Journal Articles; Reports - Descriptive
Education Level: Higher Education; Postsecondary Education
Authoring Institution: N/A