124 



WORK OF E. G. MAHIN. 



that K decreases rapidly at first may be explained on the general ground that 

 Ostwald's dilution law is not applicable to solutions of strong electrolytes, or upon 

 the assumption of polymerization of the electrolyte. It will appear later that there 

 is reason for the latter view. 



In table 91 is given the calculated product of viscosity and molecular conductivity 

 for all of the solutions. In these calculations we have used, in each case, the vis- 

 cosity of the solvent, which is practically identical with that of the dilute solution, and 

 have taken for fx, the highest value which has been obtained in this work. 



0.2 



1.0 N 



0.4 0.6 0.8 



Concentration Normal 

 Fig. 52. Molecular weight of lithium nitrate in acetone. 



The product of viscosity and molecular conductivity is seen to be nearly a constant 

 for mixtures of acetone with methyl alcohol and with ethyl alcohol. This constant 

 is independent of temperature, and its value is nearly 0.70, the value found 1 y 

 Walden for tetraethylammonium iodide in a large number of organic solvents. For 

 mixtures of acetone with water the product varies between about 1.00, the value 

 for water, and about 0.60, that for acetone. The product for water is also shown to 



