Question

a gas is found to have a formula (CO)n if its vapour density is 56 the value of n will be​

Answer 1

Here,

The emperical formula mass is:12+16=28g

The molecular mass is:2(vapour density)=2×56=112g

Now,

n=Molecular mass/Emperical Mass

=114/28

=4

Now,

The molecular formula would be,

(CO)n

=(CO)4

=C4H4