242 RELATION OF PHYSICAL PROPERTIES OF AQUEOUS SOLUTIONS 



following values of differences of molecular conductivity will 

 be sufficient : 



Compare with this the following table of values of JU TO and 



The approximate constancy holds in the case of HCl and 

 JK 2 C0 3 , because ^ for HCl being more than twice as great as 

 for JK 2 CO 3 , a for the Matter falls off nearly twice as rapidly 

 as for the former. In the case of AgNO 3 and NaCl there is 

 no approximation to constancy, because the values of ^ being 

 nearly equal, the rates at which a varies with n are very 

 unequal. 



THE INDEPENDENCE OF THE CONTRIBUTIONS MADE TO THE 

 VALUE OF A PROPERTY BY THE FREE IONS. 



The constant I for a salt ap will, according to the dissocia- 

 tion conception, be composed additively of two parts, l a and l p , 

 pertaining to the ions a arid p respectively, and these constants 



