Percent Composition
Defn
:
The percentages of a compoundŐs mass that
are due to each of the component elements.
Mass of C = 2 x 12.011g
Mass of H = 6 x 1.008 g
Mass of O = 1 x 15.999 g
Mass of 1 mole of C
2
H
5
OH = ??
C
2
H
5
OH