WO UK OF C. Al. tiTiiNJii. 



15 



In the tables of this volume the following symbols are used: 



m = concentration in terms of gram-molecules per liter; 

 A = observed freezing-point lowering corrected for separation of ice; 

 A/m = molecular lowering of freezing-point; 



V = number of letters that contain a gram-molecule of the dissolved 



substance; 

 k = specific conductivity ; 

 /* = molecular conductivity at = 1,000 X FX&; 

 a = percentage of dissociation = n v /n<* ; 

 Ws j = weight of 25 or of 50 c.c. or of a smaller volume of the solution; 

 W S aii weight of salt contained in this volume of the solution; 

 W H j) = weight of water in this volume of solution = W so iW sa u', 

 Correction per cent = percentage of correction to be applied in order to 

 refer measurements to 1,000 grams of solvent; 1 

 L = theoretical molecular lowering of freezing-point referred to 1,000 



grams of the solvent ; 

 P = parts by volume of each of the solutions = 1 , unless otherwise state* I ; 

 L' corrected molecular lowering ; 

 M = number of gram-molecules of water in combination, both being 



referred to 1,000 grams of solvent; 

 H number of molecules of water in combination with one molecule of 

 the salt, at the concentration in question. 



Table 2. Data of Freezing-point, Hydrates, Conductivity, and Weight-normal Corrections 



of Calcium Chloride. 



'These are not specific gravity measurements made in pyenometers, and the correction percentage is therefore given only 

 to the first decimal. 



