66 CONDUCTIVITY, ETC,, OF AQUEOUS SOLUTIONS. BARNES. 



TABLE IX. 

 SPECIFIC GRAVITY AT 18 C. REFERRED TO WATER AT 18 C. 



TABLE X. 

 SURFACE TENSION AT 15 C. 



According to Table IX it appears that the specific gravity of 

 a solution of these salts from an average concentration of about 

 0.05 to 0.5 can be calculated by the above formula, and with the 

 above values of the ionization constants. 



From Table X this formula applies for surface tension of 

 solutions of these salts from a concentration of 0.5 to 1.3. 



Summary of Results. 



According to the above results it is possible, by the aid of 

 the dissociation theory and with data obtained from the simple 

 solutions, to predict the conductivity, specific gravity and surface 

 tension, of fairly dilute solutions of potassium chloride and 

 potassium sulphate, within the limit of experimental error. 



