212 THE ATOMIC WEIGHTS. 



Analyst B. 



2.853ogrm. VOCI 3 = 5.2853 grm. Ag. 53-98o 



2.1252 " 3-9535 " 53-755 



1.4248 " 2.6642 " 53-479 



Mean, 53.586, =b .039 



The gravimetric series, of course, fixes the ratio between VOC1 3 and 

 AgCl. If we put the latter at 100 parts, the proportion of VOC1 3 is as 

 given in the third column : 



Analyst A. 



1.8521 grm. VOC1 3 gave 4.5932 grm. AgCl. 40.323 



.7013 " 1.7303 " 40.53 1 



.7486 1.8467 " 40.537 



1.4408 3-57I9 " 40.337 



9453 2.3399 " 40.399 



1.6183 " 4.0282 " 40.174 



Analyst B. 



2.1936 grm. VOC1 3 gave 5.4039 grm. AgCl. 40.391 



2.5054 " 6.2118 " 40.333 



Mean, 40.378, b .028 



These two series give us two values for the molecular weight of VOC1 3 : 



From volumetric series . . VOC1 3 = 172.185, rb .1254 



From gravimetric series " = 172.358, .1196 



General mean VOC1 3 172.277, zfc .0866 



Hence V = 50.881, .0877. 



Combining the two values for V, we have : 



From VOC1 3 V = 50.881, .0877 



From V 2 O 5 " = 50.993, .0219 



General mean V = 50.986, .0212 



If = 16, V = 51.376. These values are calculated with = 15.879, 

 .0003; Cl = 35.179, .0048; Ag = 107.108, .0031, and AgCl = 



142.287, .0037. 



