Question

The empirical formula of a compond is CH2o.its molecular weight is 90 calculate the molecular formula of the compound​

Answer 1

Answer:

Hello Mate:

Here is ur answer;

Empirical formula

C=12

H=1

O=16

CH2O=12+1(2)+16 =30grm

Molecular weight=90grm

Molecular formula =90/30=3

(CH2O)3=C3H6O3

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Answer 2

Answer:

Molecularformula=n×empericalformula

n=

emperical formula weight

Molecular formula weight

Emperical formula weight of CH

2

O is 30 (12+2+16)

Molecular formula weight is 90

So,

n=

30

90

=3

Molecular formula=3×CH

2

O

Hence molecular formula is C

3

H

6

O

3