THE IONIZATION CONSTANT OF WATER AT 25° FROM THE ELECTROMOTIVE FORCE OF CELLS WITHOUT LIQUID JUNCTION

1930 ◽  
Vol 52 (10) ◽  
pp. 3877-3881 ◽  
Author(s):  
Elliott J. Roberts
Keyword(s):  
Electromotive Force ◽  
Ionization Constant ◽  
Liquid Junction

scholarly journals THE COMBINATION OF EDESTIN WITH HYDROCHLORIC ACID

1930 ◽  
Vol 14 (1) ◽  
pp. 99-103 ◽  
Author(s):  
David I. Hitchcock
Keyword(s):  
Hydrochloric Acid ◽  
Electromotive Force ◽  
Force Measurements ◽  
Liquid Junction ◽  
Electromotive Force Measurements

Electromotive force measurements of cells without liquid junction, of the type Ag, AgCl, HCl + protein, H2, lead to the conclusion that 1 gm. of edestin (or, more probably, edestan) combines with a maximum of 13.4 x 10–4 equivalents of H+ and 3.9 x 10–4 equivalents of Cl-, when the protein is dissolved in 0.1 M HCl.

Potentiométrie de précision à basse température dans les mélanges eau – éthylène glycol; grandeurs thermodynamiques relatives aux ionisations de l'acide acétique et du solvant mixte

1983 ◽  
Vol 61 (10) ◽  
pp. 2344-2348 ◽  
Author(s):  
Hamed Bahri ◽  
Jean-Claude Hallé ◽  
Robert Schaal
Keyword(s):  
Ethylene Glycol ◽  
Electromotive Force ◽  
Dissociation Constants ◽  
Silver Chloride ◽  
Force Measurements ◽  
Liquid Junction ◽  
Solvent Water ◽  
Electromotive Force Measurements ◽  
Silver Silver ◽  
Silver Silver Chloride

Electromotive force measurements of cells without liquid-junction containing hydrogen electrodes and silver – silver chloride electrodes have been used to derive the dissociation constants of acetic acid and solvent water – ethylene glycol mixtures (50 and 70 mass % of ethyleneglycol) at 14 temperatures from −35 to 30 °C. Primary acidity standards related to these acetic buffered and sodium hydroxide solutions are given.

High Temperature Aqueous Electrolyte Concentration Cells and the Ionization of Liquid Water to 200 °C

1973 ◽  
Vol 51 (15) ◽  
pp. 2590-2595 ◽  
Author(s):  
Digby D. MacDonald ◽  
P. Butler ◽  
D. Owen
Keyword(s):  
High Temperature ◽  
Temperature Dependence ◽  
Thermodynamic Parameters ◽  
Liquid Water ◽  
Infinite Dilution ◽  
Electrolyte Concentration ◽  
Aqueous Electrolyte ◽  
Ionization Constant ◽  
Liquid Junction ◽  
Concentration Cells

High temperature aqueous electrolyte concentration cells with and without liquid junction are described. These cells were used to measure the ionization constant of water in 0.1, 0.25,0.5, and]1.0 mol/kg KCl solutions at temperatures to 200 °C. Extrapolation to infinite dilution yielded the following functions for the temperature dependence of log Kw0 and the thermodynamic parameters for ionization: log Kw0 = −4046.16/T + 3.537 − 0.01323T; ΔG0 = 77458.0 − 67.71T + 0.253187T2 J/mol; ΔH0 = 77458.0 − 0.253187T2 J/mol; ΔS0 = 67.71 − 0.5063T J/K mol; ΔCp0 = −0.5063T J/K mol.

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