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Osmotic and activity coefficients of {xKNO3+(1−x)MgSO4}(aq) at the temperature 298.15 K

✍ Scribed by M. Todorović; R. Ninković

Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
175 KB
Volume
29
Category
Article
ISSN
0021-9614

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✦ Synopsis

The osmotic coefficients of the mixed electrolyte solution 4xKNO3 + (1 -x)MgSO45(aq) have been measured by the isopiestic method at the temperature 298.15 K. The activity coefficients of KNO3 and MgSO4 were calculated by Scatchard's neutral-electrolyte method and by Pitzer and Kim's treatment for mixed-electrolyte solutions. The results are used for calculation of the excess Gibbs free energy as a function of ionic strength and ionic-strength fraction of KNO3 and also for a test of Zdanovskii's rule of linearity.

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