The use of the henderson equation to estimate the emf difference between cells with and without liquid junction

✍ Scribed by P.A. Rock

• Publisher: Elsevier Science
• Year: 1967
• Tongue: English
• Weight: 436 KB
• Volume: 12
• Category: Article
• ISSN: 0013-4686
• DOI: 10.1016/0013-4686(67)80068-9

✦ Synopsis

Experiments have been performed using suitably constructed electrochemical cells to determine the reliability of the Henderson equation when used for the purpose of estimating the emf difference between cells with and without liquid junction. It has been found that the Henderson equation is more reliable in estimating the observed emf difference in the case of junctions composed of salt solutions of the same valence type than it is for junctions composed of salt solutions of different valence types. A possible explanation for this observation is discussed.

R&sun&-On a prodde a des experiences utilisant des cellules tlectrochimiques construites de manibre adequate pour determiner la precision de la formule d'Henderson lorsque celle-ci est employee dans le but d'estimer la difference de force electromotrice entre les cellules avec et sans 'onction liquide.

-a On a constat que la formule d'Henderson est plus valable dans l'estimation des di erences de force electromotrice dam le MS de jonctions comportant des solutions de sels de meme type de valence que dans le cas de jonctions comportant des solutions de sels de types de valence differents. On discute une explication possible de cette constatation.