Molecular formula of Isoflurane is <span><span>C</span></span>₃H₂ClF₅O.
Now calculate
the percent composition by mass, which means percent of each element in the
compound.
Mass of Isoflurane
= 184.49 g/mol
Mass of carbon in the compound = 3 x
12.011 = 36.033g
Mass of hydrogen in the compound = 2 x
1.008 = 2.016g
Mass of chlorine in the compound = 1 x 35.453
= 35.453 g
Mass of fluorine in the compound = 5 x 18.998
= 94.99g
Mass of Oxygen in the compound = 1 x 16
= 16 g
Carbon’s percentage = Mass of carbon in
the compound /mass of isoflurane x 100 =36.033/184.49 x 100 =19.53%
Hydrogen’s Percentage = Mass of hydrogen
in the compound/mass of isoflurane x 100 = 2.016/184.49 = 1.09%
Chlorine’s percentage = Mass of chlorine
in the compound/mass of isoflurane x 100 = 35.453/184.49 =19.22%
Flourine’s percentage = Mass of fluorine
in the compound/mass of isoflurane x 100 = 94.99/184.49 x 100 = 51.49%
Oxygen’s percentage = Mass of Oxygen in
the compound/mass of isoflurane x 100 =16/184.49 x 100 = 8.67%
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