Question

A gas is found to have a formula $[CO]_x$. If its vapour density is 70, the value of x is :
(a) 2.5
(b) 3.0
(c) 5.0
(d) 6.0

Answer 1

Answer : 5

Explanation :

molecular mass = 2 * vapor density

so in this case molecular mass = 140

The mass of 1 CO molecule is 28 so for mass of 140 x = 5