Question

Prove that⤵
Molecular mass=2×Vapour density

Answer 1

Heya....✋
Answer is in attachment
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Answer 2

Ans:We know that, V.D=(mass of a certain volume of gas)/(mass of same volume of hydrogen)

=mass of 22.4L of gas/mass of 22.4 L of hydrogen

=Molecular mass of gas/Molecular mass of hydrogen

=Molecular mass of gas/2

• Therefore Molecular mass of a gas =2×Vapour density