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Glass-electrode measurements over a wide range of temperatures: The ionization constants (5–90°C) and thermodynamics of ionization of aqueous benzoic acid

Abstract

Glass-electrode measurements have been applied to the determination of the ionization constant of aqueous benzoic acid from 5 to 90°C, with the experimental procedure and calculations described in detail. The results lead to ΔHo=+60 cal-mole−1 for the standard enthalpy of ionization at 298°K, which is compared with ΔHo values from earlier investigations.

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Travers, J.G., McCurdy, K.G., Dolman, D. et al. Glass-electrode measurements over a wide range of temperatures: The ionization constants (5–90°C) and thermodynamics of ionization of aqueous benzoic acid. J Solution Chem 4, 267–274 (1975). https://doi.org/10.1007/BF00650385

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Key words

  • Glass-electrode measurements
  • benzoic acid ionization
  • thermodynamics of acid ionization