DETAILS OF ANALYSIS. 



51 



February 8 (0.070 liter withdrawn). 



There was now a slight excess of silver. Hence there was added 

 0.03 milligram of sodic chloride, corresponding to 0.06 milligram of 

 silver. 



February 16 (0.07 liter withdrawn). 



Thus precise equality had been attained. 



Volume liquor now remaining 435 cc. 



Withdrawn during trials 280 



Original volume 715 



If the first addition of Ag had been made to the original total 



7 1 S 

 mother liquor it would have been 0.15 X ^ = 0.19 mg. Similarly 



715 

 0.06 X - = 0.08 mg. Hence extra silver required to produce equal 



opalescence in original mother liquor = 0.19 0.08 mg. = 0.0001 1 gm. 



LjlLIBRAi 



L-A ***<& J 3*1 



