Abstract
Electromotive-force measurements are reported for mixtures of HBr and BaBr2 in water at 25°C at constant total ionic strengths. Activity coefficients for HBr were analyzed using Pitzer's equations and Scatchard's neutral-electrolyte treatment. Both methods gave comparable results if the effects of higher-order electrostatic terms on the H+−Ba+2 interactions were included in Pitzer's treatment. Furthermore, the value of the H+−Ba+2 interaction parameter, θ(s), which should be independent of the anion, is indeed close to that for binary mixtures of these ions having chloride as common ion.
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Khoo, K.H., Lim, TK. & Chan, CY. Ionic interactions in the system HBr + BaBr2 + H2O at 25°C. J Solution Chem 8, 277–282 (1979). https://doi.org/10.1007/BF00650745
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DOI: https://doi.org/10.1007/BF00650745