WORK OF H. R. KRE1DER. 



101 



the increased viscosity, on the one hand, diminishes the conductivity, and the de- 

 creased dissociation, on the other, increases the conductivity. The viscosity in this 

 case, since it is the more potent factor, causes the large minima in the curves for con- 

 ductivity. These minima would be more marked than they arc were it not for the 

 slightly increased dissociation. 



160- 



140 



120 



1 ioo 



3 



8 



Fig. 40. 



Conductivity of cobalt chloride 

 in mixtures of ethyl alcohol and 

 water at 25. 



80 



60 



40 



20 



"ST 



25 50 75 



Per cent, of ethyl alcohol 



100 



Table 70 gives the fx x values of molecular conductivity for the various salts studied 

 both in methyl and in ethyl alcohols at and at 25, whenever such values could be 

 found. The values without the brackets were determined experimentally. Those 

 within the brackets could not be determined experimentally because of the great 

 dilutions and consequently unavoidable errors, but were calculated by a method 

 given below. 



BINARY ELECTROLYTES AND TERNARY ELECTROLYTES. 



An examination of the table reveals the fact that there is some relation between the 

 maxima for each salt in the different solvents at any given temperature. It was 

 suspected that this relation is a constant and that the following equation would hold: 



M M methyl 



/-'. 



ethvl 



= constant. 



