Journal Articles (before-1995)

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Subject: search.filters.subject.Dissociation Constant

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    Dissociation Constant of Calcium Sulphate from 25 to 50°C
    (Journal of the Chemical Society : Faraday Transaction - I. The Chemical Society, London. 1973, 69 (6), 1973) Ainsworth, Richard G.
    The e.m.f. of the cell Ag, AgCl | CaCl2(/Hi), CaSO4(/n2) | Ca-cxchange membrane | CaCl2(0.1 mol kg-1) | AgCl, Ag has been determined at 25,40 and 50°C. Errors associated with drifting of the calcium ion-exchange electrode have been minimised by using a rapid method to determine E& and the Nernstian slope factor of the electrode pair before determining the e.m.f. of the above cell. The data were used to calculate values of the thermodynamic quantities Kd, AGO, A//O, ASO and ACO for the dissociation of the CaSO4 ion-pair.
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    Effect of the Solution Vapour Pressure on the Temperature Dependence of the Dissociation Constant of Acetic Acid in Water
    (Journal of the Chemical Society : Faraday Transaction - I. The Chemical Society, London. 1972, 68 (10), 1972) Lown, D. A.; Thirsk, H. R.
    The dissociation constant of acetic acid in water is between 4 and 26% greater at the solution vapour pressure than at one atmosphere in the range 250 to 374°C. K = /(T)s.v.P. corresponds to neither the isobaric nor isochoric conditions, and the error introduced by neglecting the effect of the vapour pressure on the equilibrium at high temperatures is discussed.