WORK OF C. M. STINE. 



55 



no change in the dissociation of these salts takes place when their solutions are mixed. 

 The results are given, along with the conductivities of the mixtures, in table 43. 



Table 43. Potassium Chloride and Ammonium Chloride. 



If this change in the conductivity, when the solutions are mixed, is due only to a 

 suppression of ionization, then we should expect the suppression to be nearly the same 

 at the various temperatures, since the dissociation is very nearly the same at these 

 various temperatures (vide table 44). 



Table 44. Dissociation of Potassium and Ammonium Chlorides. 



If the suppression of the ionization is the only cause of the diminution in the con- 

 ductivity when the solutions are mixed, then the greatest diminution should take 

 place where the more highly dissociated salts are mixed; that is, the diminution in 

 conductivity should be slightly greater at than at 12 C, and slightly greater at 

 12 C. than at 25 C. Just the opposite is shown to be true by table 43. Again, if 

 this lessening of conductivity is dependent upon the amount of dissociation alone, 

 then, since the difference between the dissociation at and 12 C. is the same or a 



