of Gibbs's Theory of Surface- Concentration. 47| 



Table IV. 



Concentration of the 

 Barium Chloride 



Density- 



ot' the 

 Solutions. 



Drop- 

 number. 



Relative 

 Tension. 



Tension in 

 dynes/cm. 



Gram-moles 

 per litre. 



Per cent, 

 anhydrous. 











1-000 



153 



1000 



45-81 



0062 



1-29 



1-009 



171 



0895 



40-99 



0-125 



2-59 



/ 1-019 



188 



829 



37-98 



0-2 



4-14 



1038 



210 



0757 



34-68 



025 



5-18 



1-048 



222 



0-722 



3307 



0-33 



690 



1-066 



246 



0-663 



30 37 



0375 



7-76 



1-073 



255 



0644 



29-50 



0-5 



10-35 



1-099 



290 



0-580 



26-57 



1-0 



2070 



1-216 



419 



0444 



20-3 1 



(1-7) satd. 

 soln. 



34-00 



1-289 



585 



0338 



15-48 



Fi-. 4. 



50 



45 



^35 

 P 



30 



. j I 1 1 



tV - — I . , , 1 1 



0-1 0-2 0*3 0-4 0-o 0-6 0'7 OS 0*9 



Molar Concentration. — Barium Chloride. 



M 



For a solution of strength — - we have 

 ° 50 



c = 0-0041 grm./cc. 

 8-4 xlO 7 



l-o 



R = 



75 ' 



where 75 = osmotic molar weight, 

 T = 289° abs. 

 do- 



dc 



= 427. 



