Question

A compound with empirical formula XY has the vapour density equal to its empirical formula weight . Find its molecular formula ???
​

Answer 1

Answer:

X2Y4

Explanation:

Empirical formula = XY2

Vapor density = Empirical formula

weight

Molecular formula =? Molecular weight = n(Empirical

formula weight)

= 2 x V.D.

n(Empirical formula weight) = 2x V.D.

Since Vapour density Empirical formula weight

n = 2

Molecular formula = 2(Empirical

formula)

= 2(XY2) =X2Y4