Question

500 ml. of gas ‘X’ at s.t.p. weighs 0.50 g. Calculate the vapour density and molecular weight of the gas. [1 lit. of H₂ at s.t.p. weighs 0.09 g].

Answer 1

Vapour density of gass 'X'

at same temp. and pressure

Comments

Why it is 1000 ml? and why did we multilply it by 2?