Abstract
The standard heat of ionization of aqueous benzoic acid has been determined by solution calorimetry. The value obtained for ΔH o of ionization, 0.11±0.04, is in good agreement with ΔH o from other calorimetric values; 0.10±0.05 kcal-mole−1 is suggested to be the “best” value for this ionization at 298° K.
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References
L. P. Hammett,Physical Organic Chemistry, 2nd ed. (McGraw-Hill, New York, 1970).
J. W. Larson and L. G. Hepler, inSolute-Solvent Interactions (Marcel Dekker, New York, 1969).
L. G. Hepler and E. M. Woolley, inWater, a Comprehensive Treatise, Vol. 3 (Plenum Press, New York, 1973).
T. L. Cottrell, G. W. Drake, D. L. Levi, K. J. Tully, and J. H. Wolfenden,J. Chem. Soc., 1016 (1948).
A. V. Jones and H. N. Parton,Trans. Faraday Soc. 48, 8 (1952).
P. D. Bolton, K. A. Fleming, and F. M. Hall,J. Am. Chem. Soc. 94, 1033 (1972).
D. H. Everett and W. F. K. Wynne Jones,Trans. Faraday Soc. 35, 1380 (1939).
G. Briegleb and A. Bieber,Z. Electrochem. 55, 250 (1951).
L. P. Fernandez and L. G. Hepler,J. Phys. Chem. 63, 110 (1959).
J. M. Wilson, N. E. Gore, J. E. Sawbridge, and F. Chadenas-Cruz,J. Chem. Soc. (B), 852 (1967).
C. S. Leung and E. Grunward,J. Phys. Chem. 74, 687 (1970).
L. G. Hepler, personal communication, March 1974.
W. F. O'Hara, C. H. Wu, and L. G. Hepler,J. Chem. Educ. 38, 512 (1961).
W. F. O'Hara,Can. J. Chem. 46, 1965 (1968).
C. E. Vanderzee and J. A. Swanson,J. Phys. Chem. 67, 2608 (1963).
J. J. Christensen, H. D. Johnston, and R. M. Izatt,Rev. Sci. Instr. 39, 1365 (1968).
L. G. Hepler and H. C. Ko, unpublished results.
A. J. Ellis,J. Chem. Soc., 2299 (1963).
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O'Hara, W.F. Thermodynamics of ionization of benzoic acid in water at 298°K. J Solution Chem 4, 793–796 (1975). https://doi.org/10.1007/BF00650535
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DOI: https://doi.org/10.1007/BF00650535