ABSTRACT
Experimental mutual diffusion coefficients of potassium chloride, magnesium nitrate, cobalt chloride and beryllium sulfate in aqueous solutions
have been compared with those estimated by the Onsager-Fuoss. From the observed deviations, we are proposing a model that allows to estimate the percentages of H3O
+ (aq) resulting of hydrolysis of some ions (i.e., beryllium, cobalt, potassium and magnesium ions), contributing in this way to a better knowledge of the structure of these systems. The diffusion of beryllium sulfate is clearly the most affected by the beryllium ion hydrolysis.
