JACQUES LOEB 



411 



of the difference between the electrolytic dissociation of weak dibasic 

 or tribasic acids and the salts of the same acids. A weak dibasic 



CO 



o 

 o 

 if) 



> 



2.8 



2.7 

 2.6 



2.5 

 2.4 

 2.3 

 2.2 

 2.1 

 20 

 1.9 



^ 1.8 

 ^ 1.7 h 



1.6 



1.5 



1.4 



1.3 



1.2 



1.1 



1.0 



^ 8192 4095 2048 1021 512 256 128 64 32 16 8 4 2 ^^ 



Concentration 



Fig. 12. Bivalent anions have an equally depressing effect as SO4 on the specific 

 viscosity of a 1 per cent gelatin chloride solution of pH 3.0. 



acid like tartaric gives off one hydrogen ion easily but not both; 

 sodium tartrate gives off both Na ions more readily. This is compre- 

 hensible on the idea that the oppositely charged ions in a molecule 



