Question

An organic compound contains C=40%,H=6.6%,O=53.4%,if the vapour density of the compound is 30, find its molecular formula?

Answer 1

Answer:

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

Explanation:

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