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Chemistry Forums for Students => Physical Chemistry Forum => Topic started by: Fred_1807 on April 29, 2018, 12:08:28 PM

Title: Bates-Guggenheim convention for the determination of ion activity coefficients
Post by: Fred_1807 on April 29, 2018, 12:08:28 PM

Hi guys, I need some help with Bates-Guggenheim convention. I know that it is an approximation of Debye-Hückel equation in which is assumed that the ion-size parameter is a0 = 4.46 Å. My book makes only an example with chloride and my question is if it is used only for this ion or I can use it for all type of electrolyte.

Waiting for your answers and thanks!

Title: Re: Bates-Guggenheim convention for the determination of ion activity coefficients
Post by: Borek on April 29, 2018, 12:43:12 PM

It is assumed that it is reasonably accurate for every ion in the solution.