Determining an Empirical Formula

Data Sheet

!Show All Calculations!


 
 
1st Heating
2nd Heating
3rd Heating
1
 Sample #:      
2
 Mass of crucible + lid:      
3
 Mass of crucible + lid + sample:      
4
 Mass of sample (#3 - #2):      
5
 Mass of crucible + lid + anhydrous sample:      
6
 Mass of crucible + lid (same as #2):      
7
 Mass of anhydrous sample (#5 - #6), use the smallest number:      
8
 Mass of H2O in original sample (#3 - #5):      
9
 Moles of H2O in original sample:      
 10 Weight of filter paper:      
11
 Weight of watch glass:      
12
 Weight of watch glass, filter and Cu:      
13
 Mass of Cu collected (#12 - #11 - #10):      
14
 Moles of Cu in original sample:      
15
 Mass of Cl in original sample (#4 - #8 - #13):      
16
 Moles of Cl in original sample:      
17
 Empirical formula:      

(Updated 2/27/2002 by C.R. Snelling)