Browsing by Author "Poyntz, R. Barry"

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    Absolute Enthalpy of Hydration of the Proton using Data for Doubly-charged Complex Ions
    (Journal of the Chemical Society : Faraday Transaction - I. The Chemical Society, London. 1974, 70 (1-6), 1974) Lister, Maurice W.; Nyburg, Stanley C.; Poyntz, R. Barry
    The method used by Halliwell and Nyburg to estimate the absolute enthalpy of hydration of the proton using data for singly-charged ions has been extended to larger, doubly-charged, complex ions. Certain heats of solution were determined for salts containing complex ions, other data were taken from published values. The result, ΔH°298(abs. hyd.) H+(g)=– 1095 ± 20 kJ mol–1, is in close accord with that obtained previously, – 1090.8 ± 10.5 kJ mol–1. By far the largest source of uncertainty in this value is the lack of reliable lattice energies.