Standard potential of the Ag-AgCl electrode and acidity constant of glycine at constant molality of NaCl in glucose-water mixed solvents from 278.15 to 318.15 K

Standard electrode potentials E° of Ag-AgC1 electrode in molality scale and acidityconstants of glyeine pK_1° at constant molality of NaCl (1.0 mol·kg~(-1)) in 5 and 15 mass%glucose-water mixed solvents over a range of temperatures from 278.15 to 318.15 K weredetermined from precise emf measurements.The dependence of acidity constant on temperatureis given as a function of the thermodynamic temperature T by an empirical equation, pK_1°=A_1(K/T)-A_2+A_3(T/K).The corresponding thermodynamic quantities of the first dissociationprocess of glycine were calculated and the effects of both tho solvent and the salt on themwere also discussed.

Standard potential of the Ag-AgCl electrode and acidity constant of glycine at constant molality of NaCl in glucose-water mixed solvents from 278.15 to 318.15 K

Standard electrode potentials E^c of Ag-AgCl electrode in molality scale and acidity constants of glycine pK⁰₁ at constant molality of NaCl (1.0 mol·kg^?1) in 5 and 15 mass% glucose-water mixed solvents over a range of temperatures from 278.15 to 318.15 K were determined from precise emf measurements. The dependence of acidity constant on temperature is given as a function of the thermodynamic temperature T by an empirical equation. pK⁰₁ = A₁(K/T) - A₂ + A₃(T/K). The corresponding thermodynamic quantities of the first dissociation process of glycine were calculated and the effects of both the solvent and the salt on them were also discussed.