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  Home > JCE Print > Journal of Chemical Education > Issues > 1998  > February  >
In the Laboratory
Using Chemistry and Color To Analyze Household Products: A 10-12 Hour Laboratory Project at the General Chemistry Level
Wayne B. Bosma
Bradley University, Department of Chemistry, Peoria, IL 61625
Cover
February 1998
Vol. 75 No. 2
p. 214
Abstract
A general chemistry experiment is described in which the students use UV/Visible spectrometry as an analytical tool, for both compound identification and pH measurement. In the first portion of the experiment, the students compare spectra to determine which FD and C dyes are contained in household products. They furthermore use chromatography to separate the dyes in grape Kool-Aid, and analyze the products with the spectrometer. In the second portion of the experiment, the students use Beer's Law to determine the pH of solutions containing an acid/base indicator. The experiments are visually stimulating and provide a solid introduction to spectroscopy and perceived color.
More Information
*  Citation
 Bosma, Wayne B. J. Chem. Educ. 1998 75 214.
*  Keywords
 Introductory/High School Chemistry, Laboratory, and Analytical Chemistry
*  History
 Created:
Last Updated:		 June 28, 1999
November 22, 2005
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