332 



THE ATOMIC WEIGHTS. 



By Electrolysis. 



Per cent. KBr. 

 3L647 

 3L550 

 31-577 

 3L550 

 3^.640 



31.596 



Mean of eighteen experiments, 25.915, .0040 31.591, .0068 



For ammonium platinchloride Halberstadt gives the following data : 

 /. By Reduction in H. 



Pt. 



.4.662 



.6087 



.6617 

 1.0227 



.6059 



.7638 

 1.2068 

 1.4019 



2-4035 



J-532I 



Per cent. Pt. 



43-964 

 43.962 



43.95 6 

 43.880 

 43.906 

 44.011 

 43-971 

 43-984 

 43.951 



9474 

 1.1069 

 1.5101 



5345 

 1-6035 



1.9271 

 1.1046 

 1.4179 



//. By Electrolysis. 

 .4161 

 .4865 

 .6634 

 .2347 

 .7044 



.8459 

 .4858 

 6233 



43.920 

 43.951 

 43.930 



43-9 10 

 43-928 



43.894 

 43-979 

 43-959 



Mean of eighteen experiments, 43.943, .0054 

 Seubert found, 43.953, .0078 



General mean, 43.946, .0044 



For potassium platinchloride Halberstadt's data are 

 /. By Reduction in H. 



