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Citation: Zhu Yuan-Liang, Zhou Xi-Shun, Yang Fa-Wang, Lu Jin-Suo. Study on the Thermodynamic Properties of Hydrochloric Acid in Aqueous Solutions Containing Amino Acid I. Glycine+Hydrochloric acid+Water[J]. Acta Physico-Chimica Sinica, ;1992, 8(01): 132-135. doi: 10.3866/PKU.WHXB19920124 shu

Study on the Thermodynamic Properties of Hydrochloric Acid in Aqueous Solutions Containing Amino Acid I. Glycine+Hydrochloric acid+Water

1.
Chemical Department of Henan Normal University, Xinxiang 453002

Received Date: 14 August 1990
Available Online: 15 February 1992

Standard potentials (E°_m) of the Ag-AgCl electrode in Glycine+H_2O mixture at 25 ℃, 30 ℃, 35 ℃, 40 ℃, and 45 ℃ have been determined from the EMF measurements of cells of the type:
Pt, H (g, 101.325 kPa)|HCl(m)+Glycine+H_2O|AgCl-Ag
These values have been utilized to evaluate the transfer energetics (ΔG°_t, ΔH°_t, ΔS°_t) accompanying the transfer of 1 mol HCl from the standard state in water to the standard state in Glycine+H_2O mixtures. Attempts have been made to explain the transfer energetics varying with different compositions of Glycine+H_2O mixtures in the light of ion-solvent interactions and the structureal effects of the solvents.
- Hydrochloric acid; Glycine; Standard potentials; Transfer energetics; Interactions
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