Tracer-diffusion of Zn2+ ions in cobalt sulphate |
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Authors: | S. F. Patil N. G. Adhyapak P. R. Patil |
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Affiliation: | (1) Department of Chemistry, University of Poona, 411 007 Pune, India |
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Abstract: | Tracer-diffusion of Zn2+ ions in the presence of CoSO4 is studied at 25°C in 1% agar gel over a concentration range of 10–5 to 0.25M using a zone-diffusion technique. The deviations observed between experimental and theoretical values of diffusion coefficients are explained by considering different types of interactions occurring in the ion-gel-water system. Further, study of the obstruction, effect in the diffusion of Zn2+ ions at different concentrations of CoSO4 reveals that the -value decreases with increasing concentration of the electrolyte. This observation is accounted on the basis of competitive hydration between ions and agar molecules. |
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