A compound has empirical formula ch2o it's molecular mass is 180 it's molecular formulae is Phosphorus Oxide has 40 3.6%

Dear Student

Refer to the answer given by your friend. 
@Sandeep Good work 
There seems to be some error in the question too. 
"Phosphorus Oxide has 40 3.6%" part is not clear.

Regards

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The mass of CH2O = 12+2*1+16 = 30. 

The approximate molecular weight of the compound is 180. 
n= MM/EFM = 180/30 =6
Molecular formula = n (Emprical formula)


So, the molecular formula of the given compound is C6H12O6.
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