Peer reviewed
Direct linkERIC Number: EJ749957
Record Type: Journal
Publication Date: 2005-Oct
Pages: 3
Abstractor: Author
ISBN: N/A
ISSN: ISSN-0021-9584
EISSN: N/A
Using Visible Spectrophotometers and pH Measurements to Study Speciation in a Guided-Inquiry Laboratory
Otto, William H.; Larive, Cynthia K.; Mason, Susan L.; Robinson, Janet B.; Heppert Joseph A.; Ellis, James D.
Journal of Chemical Education, v82 n10 p1552-1554 Oct 2005
An experiment to perform a simple initial investigation that illustrates concepts of speciation and equilibrium, using the instrument and chemical resources in the laboratory is presented. The investigation showed that the presence of multiple chemical species in a reaction mixture (phenol red solution) reflects the acid and base conditions altering pH equilibrium concentration.
Descriptors: Laboratory Experiments, Investigations, Chemistry, Scientific Research, Spectroscopy, Inquiry, Scientific Concepts, Scientific Methodology
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://jchemed.chem.wisc.edu/
Publication Type: Journal Articles; Reports - Descriptive
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A
