ISSN:
1572-8927
Keywords:
Activity coefficients
;
emf
;
zinc chloride
;
water activity
;
Pitzer's equations
;
solvation cosphere structure
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract The standard potential of the Zn−Hg (sat)/ZnCl2(M)/AgCl/Ag cell was determined at 25°C using several extrapolation procedures and the value 0.9843 V is proposed for E°. The emf of the Zn−Hg (sat)/ZnCl2(M), salt (M)/AgCl/Ag cell [salt=NaClO4, LiClO4, Mg(ClO4)2, Mg(NO3)2] have been measured at different concentrations of salt. From these data, the mean ionic activity coefficients of ZnCl2 are determined and their variations explained with the aid of Pitzer's treatment. It seems necessary to take into account structure in the ionic cospheres in order to explain the observed variations.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00644752
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