An organic compound has a percentage composition by Carbon 40% hydrogen 6.6% and oxygen 53.4%.It's molecular mass is 60. Determine its empirical formula
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Explanation:
an organic compound contain 40% carbon ,6.66% hydrogen and 53.33% oxygen
mole of carbon = 4 mole
for carbon
122
40
= 3.33
3.33
3.33
= 1 atom
for hydrogen
1
6.66
= 6.66
3.33
6.66
= 1 atom
for oxygen
16
53.33
= 3.33
3.33
3.33
= 1 atom
emperical formula CH
2
O
mass 30 gram C is 60/30 = 2 atom
so formula is C
2
H
4
O
2
answer is D
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