Question

vapour density of a gas is 11.2 calculate volume occupied by 11.2 g of the gas at ntp

Answer 1

Hi Dear @_@
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vapour density = mass of gas/2 
                 11.2  = mass of gas/2 
               11.2x2= mass of gas 
                22.4   = mass of gas 
volume = 22.4 L at STP

Answer 2

hello friend
vapour density of a gas =11.2
molecular mass = 2× vapour density
molecular mass= 2× 11.2=22.4