1898.] of Copper and Sodium. 



of hydrochloric acid (concentrated) on the yellow salt. 



249 



Percentage of 



Atomic ratio of 



Kemarks. 



Cu. 



Na. 



S. 



CI. 



0. 



H 2 0. 



Cu. 



Na. 



S. 



01. 



0. 



H 2 





31-53 



32-99 

 322 



3208 



3209 



3119 

 31-43 



11-75 



114 



11-6 

 1155 



2505 



25-65 

 25 0G 



248 



68 

 745 



7-87 



28-86 

 2845 



5-78 



581 

 596 



.Mean 



3 00 



i ••• 



30 



J .- 



1 ... 



1 3-0 



}■ 



i 



J -. 

 30 



306 



2-93 



3-05 

 301 



4-7 



4-63 



4-7 

 4-68 



1-24 



1-34 

 129 



10-77 



10-78 



10-78 



1-9 



1-93 



I'll 



The yellow salt 

 was dissolved 

 in dilute hydro- 

 chloric acid and 

 then precipi- 

 tated by strong 

 h y droc hloric 

 acid|and washed 

 with alcohol. 



The result is high 

 owing to the salt 

 being slightly 

 decomposed. 



Deducting the 

 weight of Ag 01. 



Perfectly white 



sample. 

 Deducting the 

 weight of Ag 01. 



