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  Home > JCE Print > Journal of Chemical Education > Issues > 2003  > September  >
In the Laboratory
The Kinetics of Dissolution Revisited
Paula S. Antonel, Pablo A. Hoijemberg, Leandro M. Maiante, and M. Gabriela Lagorio
INQUIMAE/Departamento de Química Inorgánica, Analítica y Qca. Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón II, 1 er piso, C1428EHA, Buenos Aires, Argentina
Cover
September 2003
Vol. 80 No. 9
p. 1042
Abstract
An experiment analyzing the kinetics of dissolution of a solid with cylindrical geometry in water is presented. The dissolution process is followed by measuring the solid mass and its size parameters (thickness and diameter) as a function of time. It is verified that the dissolution rate follows the Nernst model. Data treatment is compared with the dissolution of a spherical solid previously described. Kinetics, diffusion concepts, and polynomial fitting of experimental data are combined in this simple experiment.
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*  Citation
 Antonel, Paula S.; Hoijemberg, Pablo A.; Maiante, Leandro M.; Lagorio, M. Gabriela. J. Chem. Educ. 2003 80 1042.
*  Keywords
 Diffusion; General Chemistry; Kinetics; Laboratory Instruction; Physical Chemistry; Solids
*  History
 Created:
Last Updated:		 August 4, 2003
February 28, 2005
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