Determination of Dissociation Constants in a Mixture of Two Weak Acids by Electromotive Force Measurements

1951 ◽  
Vol 73 (5) ◽  
pp. 2259-2261 ◽  
Author(s):  
Roger G. Bates
Keyword(s):  
Electromotive Force ◽  
Dissociation Constants ◽  
Force Measurements ◽  
Weak Acids ◽  
Electromotive Force Measurements

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.

scholarly journals Determination of Dissociation Constants of Malonic Acid in (Ethylene Glycol-Water)X% Mixed Solvent at Different Temperatures Using Electromotive Force Measurements

2019 ◽  
Vol 7 (1) ◽  
pp. 18-26
Author(s):  
Soleen S. Ahmed ◽  
Lazgin A. Jamil
Keyword(s):  
Ethylene Glycol ◽  
Malonic Acid ◽  
Electromotive Force ◽  
Mixed Solvent ◽  
Dissociation Constants ◽  
Standard Entropy ◽  
Thermodynamic Quantities ◽  
Force Measurements ◽  
Electromotive Force Measurements ◽  
Different Temperatures

The first and second dissociation constants of malonic acid in different composition of (ethylene glycol-water)%, (10, 20 and 30)% mixed solvent determined using the electromotive force measurements of galvanic cells without liquid junction at nine different temperatures,  at  interval, including the body temperature. The value of the first and second thermodynamic dissociation constants have been used to determine the thermodynamic quantities of two dissociation processes. These quantities involved the standard free energy,  standard enthalpy change,  standard entropy change,  and standard heat capacity change.

Sign in / Sign up

Export Citation Format

Share Document