•
What is the % composition of SO
2
?
•
SO
2
weighs in at 64.07 g/mol
•
S contributes
32.07
of it, oxygen
2 x
16.00
•
%S = (32.07/64.07) • 100 = 50.05%
•
%O = (32.00/64.07) • 100 = 49.94%
example