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  Home > JCE Print > Journal of Chemical Education > Issues > 1997  > February  >
In the Laboratory
Calorimetric Determination of Aqueous Ion Enthalpies
Paul Siders
Department of Chemistry, University of Minnesota - Duluth, Duluth, MN 55812
Cover
February 1997
Vol. 74 No. 2
p. 235
Abstract
Enthalpies of formation of aqueous ions can be determined by solution calorimetry. This article describes an experiment for the physical chemistry laboratory. Enthalpies of formation of aqueous sodium, potassium, chloride and iodide ions are calculated from the enthalpies of solution of salts. The enthalpies of solution are measured with the Parr 1455 solution calorimeter. The calorimeter is controlled and data are collected by a computer attached to the calorimeter's serial port. The experiment is simple and yields results that are in good agreement with literature values.
More Information
*  Citation
 Siders, Paul. J. Chem. Educ. 1997 74 235.
*  Keywords
*  History
 Created:
Last Updated:		 July 29, 1999
June 23, 2005
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