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  Home > JCE Print > Journal of Chemical Education > Issues > 1999  > May  >
Chemical Education Today
Tested Demonstrations
Solution Conductivity Apparatus
submitted by: Daniel T. Haworth, Mark R. Bartelt, and Michael J. Kenney
Department of Chemistry, Marquette University, Milwaukee, WI 53201-1881

checked by: Reed Howald
Department of Chemistry and Biochemistry, Montana State University, Bozeman, MT 59717

Cover
May 1999
Vol. 76 No. 5
p. 625
Abstract
A solution conductivity apparatus is described that can be used to measure the relative conductivity of various solutions. The apparatus can be used as either a hand-held model employing a 10-element LED display or a lecture-hall demonstration model employing a 10-incandescent-lamp array. Both meters use a headphone plug probe, which is completely safe from electrical shock and can be held between the fingers at no risk to the investigator. The tester has an ac source to avoid polarization effects, which degrade the performance of a device using only direct current.
More Information
*  Citation
 Haworth, Daniel T.; Bartelt, Mark R.; Kenney, Michael J. J. Chem. Educ. 1999 76 625.
*  Keywords
 Demonstrations; Laboratory Instruction; Laboratory Equipment / Apparatus; Conductivity; Solutions / Solvents; Aqueous Solution Chemistry
*  History
 Created:
Last Updated:		 June 11, 1999
June 23, 2005
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