TRANSACTIONS 



OF THE 



rScotian Institute of Science. 



SESSION OF 189T-98. 



I. ON THE CALCULATION OF THE CONDUCTIVITY OF AQUEOUS 

 SOLUTIONS CONTAINING POTASSIUM AND SODIUM SUL- 

 PHATES. BY E. H. ARCHIBALD, B. Sc., Dalhousie 

 College, Halifax, N. S. 



(Read November 15th, 1897.) 



According to the dissociation theory of electrolysis, held by 

 Arrhenius and others, the conductivity of a mixture of two 

 solutions of electrolytes, 1 and 2, which have one ion in common, 

 and which contain n^ and 7i 2 gramme-equivalents per unit of 

 volume, is given by the expression : 



where v-^ and v 2 are the volumes of the two solutions mixed, p 

 the ratio of the volume of the mixture to the sum of the volumes 

 of the constituent solutions, ^ ! and ^ 2 the molecular conducti- 

 vities, at infinite dilution, of the respective electrolytes under the 

 conditions in which they exist in the mixture, and 1( 2 , the 

 ionization coefficients of the respective electrolytes in the 

 mixture. 



The value of p in the above formula may be determined by 

 density measurements, before and after mixing ; //^j and p x2 

 which for sufficient! v dilute mixtures, may be considered to have 



(291) 



