and 



Diffusion of Liquids. 417 



Reduced to normal solutions, these figures correspond to 

 0-0936 gram BaC] 2 in 24 hours, 



0-0686 gram SrCl 2 in 24 hours. 



Diffusion of NiCl 2 and CoCl 2 . 



Experiments with n solutions of these salts required for 



CoCl 2 , 1'02 cubic centim. JL AgN0 3 per hour, corresponding 

 to 40 



0-0397 gram CoCl 2 in 24 hours; 



and for NiCl 2 , 1*01 cubic centim. ~ AgN0 3 per hour, corre- 

 sponding to 



0-0394 gram NiCl 2 in 24 hours. 



An attempt was made to determine the rate of diffusion of 

 Fe 2 Cl 6 ; but the rapid dissociation of this salt in solution made 

 the results of no value. 



Diffusion of Bromides and Iodides. 



These salts were diffused as were the chlorides, and deter- 

 mined in the same manner. 



Diffusion of n 



KBr. 



Diffusion 



of n NH 4 Br. 



Time. 



Cub. cent. 



Cub. cent, 

 per hour. 



Cub. cent. 

 Time. „ AgNCV 



Cub. cent, 

 per hour. 



3-5 



2-74 



1-37 



8-12 



4-1 



1-02 



5-8 A.M. 



19-70 



1-31 



12-4 



4-0 



1-00 



8-1 



6-55 



1-31 



4-8 A.M. 



15-6 



0-97 



1-5 



5-22 



1-30 



8-12 



4-5 



1-12 



5-8 A.M. 



18-75 



1-25 



12-4 



4-7 



1-17 



8-12 



6-40 



1-60 



4-9 A.M. 



18-5 



1-09 



12-4 



6-04 



1-51 



9-1 



4-5 



1-12 



4-8 A.M. 



21-64 



1-35 



53 h. 



55-9 



1-05 



8-12 



6-05 



1-51 









69 h. 93-09 1-35 



These values correspond to 



0-0965 gram KBr in 24 hours, 



and 



0-0617 gram NH 4 Br in 24 hours. 



Experiments with n solutions of KI, Nal, NaBr, and KCy 

 gave the following results : — 



