Question

At n.t.p 5.6 litres of gas weigh 8 gram. the vapour density of the gas is

Answer 1

At Normal temperature and pressure, 1mole of a gas occupies 22.4 litres.

          So 0.25 moles of a gas occupies 5.6 litres
given that 8 grams of the gas occupies 5.6 litres

           thus, 0.25 moles is 8 grams of the gas.
hence 1mole of the gas is 32 grams of the gas.

Therefore the molecular weight of the gas is 32 grams.
So the vapour density, which is half of molecular weight is 16 grams

Answer 2

Answer:

Answer is 16 gm.

Explanation:

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