Question

A compound is made up of two elements X and Y in the ratio 2:3 by mass. How many atoms of each of these elements would be present in the molecules of the compound? Give the molecular formula of the compound. ( atomic mass of X=32u, Y=16u)
please give proper answer ASAP ​

Answer 1

Explanation:

Emp. formula =X

2

Y, At. wt. of X=10, At. wt. of Y=5

∴ Empirical formula mass =2×10+5=25

If Vapour density V.D.=25

Mol. Mass =V.D.×2=25×2=50u

n=

Emp.formula mass

Mol.Mass

=

25

50

=2

Mol. formula =Emp.formula×2=X

2

Y×2

=X

4

Y

2

.