78 



CONDUCTIVITY AND VISCOSITY IN MIXED SOLVENTS. 



50 # 7554 



"Percentage of Ethyl Alcohol 



100^ 



FIG. 16. CONDUCTIVITY OF SILVER NITRATE IN MIXTURES 

 OF ETHYL ALCOHOL AKD WATER AT 25. 



In order to see the connection existing between the conductivities in each 

 solvent, table 50 is given for comparison. 



It is seen from the values in table 50 that the molecular conductivity in 

 ethyl alcohol and mixtures with water does not show a minimum over the 

 ordinary range of dilution, but still does not obey the law of mixtures. This 

 is in accordance with the work of Jones and Lindsay on potassium iodide. 

 In that case they did not find a trace of a minimum at 25. The values 

 in the first part of table 50 are plotted as curves in fig. 16, the abscissae 

 representing the different per cents of alcohol and the ordinates the molec- 

 ular conductivities. 



The curves in fig. 17 are of the same general form as those in fig. 16. 

 No distinct minimum is shown, but the form of the curve indicates that 

 a minimum value is approached. 



In nearly every case the minimum, as shown by the curves in fig. 18, 



