Naslov
Calibration of Glass Electrode in Terms of [H+] and Determination of Stoicheiometric Equilibrium Constants

Autori
Gopurenko, Tamara ; Kazimir, Majorinc ; Simeon, Vladimir

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
MATH/CHEM/COMP 99, Book of Abstracts / Graovac, Ante ; Smrečki, Vilko ; Vikić-Topić, Dražen - Zagreb, 1999

Skup
MATH/CHEM/COMP 99

Mjesto i datum
Zagreb, Hrvatska; Dubrovnik, Hrvatska, 1999

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
glass electrode; calibration

Sažetak
In order to determine the parameters of glass-electrode cell, potentiometric titrations of aqueous solutions of two weak acids {tris-(hydroxymethyl)-aminomethane (THAM) and potassium hydrogenphthalate (KHP)} with a strong base (KOH) were performed. The ionic strength of the medium was maintained nearly constant (0.1 mol/L) by adding an excess of strong electrolytes (KNO3 + KCl) thus ensuring approximate constancy of ionic activity coefficients. Cell calibration parameters, as well as the values of stoicheiometric (de)hydronation constants were computed from the titration data by means of an iterative optimisation procedure.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

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