Question

Solution for the empirical formula of compound is c2h5. it has vapour density of 29.determine relative molecular mass of the compound and hence its molecular formula

Answer 1

V.D. = 29
Emperical formula mass = 12(2) + 5(1) = 29


n = given mass/ emperical formula mass.
= 2*29/29 =2 ( mass = 2* vapour density )


Molecular formula = n * emperical formula
= 2* C2H5
Molecular formula = C4H10

Answer 2

Answer:

vd = 29

so, n = mm/em

I. e. 2*29/29= 2

so, molecular mass =29*2=58

Mf = C4H10

Explanation: