DISSOCIATION OF ACIDS AND BASES 



The dissociation residue p 



a 



a 



The degree of salt formation <^ = 3 



139 



(2) 

 (3) 



0\ 



Fig. 20 



3t567 8 9 70 11 



Fig. 21 



cc 



Fig. 22 



Figs. 20 to 22. The functions p, a-, and a of an acid whose dissociation con- 

 stant is ka = 10 ~', in the presence of a salt of an univalent cation in the concen- 

 trations marked on the curves, assuming that the acid and this cation form a 

 salt whose dissociation constant ka = 10 ~^. 



where s is the concentration of the true salt formed by the acid A 

 and the cation I+. 



According to the definitions 



a 



a + a~ + 3 



(4) 



