Abstract
Electromotive-force measurements of the cell
for five values of the ionic strength (I) between 0.1 and 3.0 mol-kg−1 and over the temperature range 5 to 50°C are reported. At I=1.0 and above, the activity coefficients of HCl are a distinctly non-linear function of solution composition. This behavior is satisfactorily accounted for in terms of specific ion interactions of the type H−Cs and H−Cl−Cs. The temperature variation of the Harned coefficient supports the suggestion of Robinson that the interaction H−Cs is insensitive to temperature changes.
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On leave from the University of Durban-Westville, South Africa, 1977–78.
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Sankar, M., Macaskill, J.B. & Bates, R.G. Activity coefficients of hydrochloric acid and ionic interactions in the system HCl−CsCl−H2O from 5 to 50°C. J Solution Chem 10, 169–179 (1981). https://doi.org/10.1007/BF00653094
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DOI: https://doi.org/10.1007/BF00653094