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  Home > JCE Print > Journal of Chemical Education > Issues > 2001  > October  >
In the Laboratory
Analysis of Zinc Tablets: An Extension to a Stoichiometry Experiment
Steven Murov and Brian Stedjee
Science, Mathematics, and Engineering Division, Modesto Junior College, Modesto, CA 95350
Cover
October 2001
Vol. 78 No. 10
p. 1389
Abstract
Using a titration, students can determine the stoichiometry of the reaction between zinc ion and ferrocyanide ion. The technique can then be used to determine the concentration of zinc ion or ferrocyanide in unknown solutions or the amount of zinc ion in commercially available tablets. The experiment teaches many important general chemistry laboratory techniques, such as preparation of standard solutions and quantitative use of pipets and burets. The application of solution stoichiometry calculations provides an important link between lecture and the laboratory.
Supplement
A student handout providing background information, problems, instructions for performing the experiment, and a data sheet is available.
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*  Citation
 Murov, Steven; Stedjee, Brian. J. Chem. Educ. 2001 78 1389.
*  Keywords
 Analytical Chemistry; Inquiry-Based / Discovery Method; Laboratory Instruction; Quantitative Analysis; Stoichiometry; Zinc
*  History
 Created:
Last Updated:		 September 13, 2001
August 31, 2005
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