Studies in ion solvation in non-aqueous solvents and their aqueous mixtures. Part VI. The solubility product of silver chloride in 10 and 43·12% methanol–water mixtures, and a comparison of Ag + with d° cations

Authors:
  • DFD. Feakins
    D. Feakins
  • KLK. G. Lawrence
    K. G. Lawrence
  • RTR. P. T. Tomkins
    R. P. T. Tomkins
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Abstract
The thermodynamic solubility product of silver chloride at 25° has been obtained, by e.m.f. measurements, in 10 and 43·12%(w/w) methanol–water mixtures, and its free energies of transfer from water to these mixtures calculated. If computations of the free energies of transfer of single ions, made earlier in the Series, are correct, the silver ion is stablised in the mixtures, relative to water, to a greater extent than a d° cation of comparable size. This is shown to be the result expected from its chemistry. The use of a digital voltmeter for the e.m.f. measurements is described.