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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T. Matsui, H. C. Ko, and L. G. Hepler,Can. J. Chem. 52, 2906 (1974).
F. Rodante, F. Rallo, and P. Fiordiponti,Thermochim. Acta 9, 269 (1974).
P. D. Bolton, K. A. Fleming, and F. M. Hall,J. Am. Chem. Soc. 94, 1033 (1972).
R. G. Bates,Determination of pH: Theory and Practice (John Wiley and Sons, New York, 1964).
V. E. Bower and R. G. Bates,J. Res. Nat. Bur. Std. 59, 261 (1957).
W. J. Hamer and S. F. Acree,J. Res. Nat. Bur. Std. 32, 215 (1944); R. G. Bates and S. F. Acree,J. Res. Nat. Bur. Std. 34, 373 (1945).
E. J. King,Acid-Base Equilibria (Pergamon Press, Oxford, 1965).
E. C. W. Clarke and D. N. Glew,Trans. Faraday Soc. 36, 539 (1966).
P. D. Bloton,J. Chem. Educ. 47, 638 (1970).
T. Matsui, H. C. Ko, and L. G. Hepler,Can. J. Chem. 52, 2912 (1974).
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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
- Glass-electrode measurements
- benzoic acid ionization
- thermodynamics of acid ionization