Question

the empirical formula of a compound of molecular mass 120 is CH2O. The molecular formula of the compound is ​

Answer 1

Answer:

Molecular mass =120

Emperical formula =CH2O

Empirical formula mass =12+2+16

=30

n=Molecular mass /Emperical formula mass

n =120/30

= 4

Now,

molecular formula=4×(CH2O)

=C4H8O4