Thermodynamic studies of zinc chloride in mixed aqueous solvents from electromotive force measurments I. methanol-water mixtures

From the emf measurements of the cell Pt/Zn(Hg)/ZnCl₂, CH₃OH, H₂O/AgCl/Ag the standard emf of the cell have been determined for mass fractions of methanol of 10, 20, 30, 50 and 70% at 298 K, 303 K, 308 K and 313 K in the molality range for zinc chloride from 0.004 to 0.1 mol kg^?1. These data were used in calculations of: (a) the mean activity coefficient of zinc chloride, (b) the primary medium effect, (c) the standard thermodynamic quantities for the cell reaction and the transfer of zinc chloride from water to mixed solvents.