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  Home > JCE Print > Journal of Chemical Education > Issues > 2002  > July  >
Research: Science and Education
Partial Molar Volumes from Refractive Index Measurements
Anthony F. Fucaloro
Joint Science Department, Claremont McKenna, Pitzer, and Scripps Colleges, 925 N. Mills Avenue, Claremont, CA 91711-6400
Cover
July 2002
Vol. 79 No. 7
p. 865
Abstract
A quick, convenient, and accurate method for estimating partial molar volumes for binary liquid mixtures from measurements of index of refraction as a function of composition is presented. The method relies upon the additive properties of molar refraction. By measuring the index of refraction of a mixture of a known composition, one may estimate its molar volume. Partial molar volumes of the components may be calculated from the molar volume as a function of composition using standard methods. Also presented is a method for calculating partial molar volumes that is particularly well-suited for spreadsheets.
More Information
*  Citation
 Fucaloro, Anthony F. J. Chem. Educ. 2002 79 865.
*  Keywords
 Aqueous Solution Chemistry; molar refractivity*; molar volume*; partial molar volume*; Physical Chemistry; Solutions / Solvents; Thermodynamics
*  History
 Created:
Last Updated:		 June 17, 2002
March 16, 2005
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