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JAMB Chemistry 1994 Question 6

Question 6

Gas Laws

For a gas, the relative molecular mass is equal to 2Y. What is Y?

  1. A.The mass of the gas
  2. B.The vapour density of the gas
  3. C.The volume of the gas
  4. D.The temperature of the gas
Show the answer and explanation

Answer: B (The vapour density of the gas)

Explanation

Relative molecular mass = 2 × vapour density, because vapour density compares the gas with hydrogen (M = 2).