if 200cm 3 of a gas at s.t.p has a mass of 0.268g what is...

CHEMISTRYWAEC 1989

if 200cm3 of a gas at s.t.p has a mass of 0.268g what is it molar mass? (molar volume of gas at s.t.p=22.4dm3)

  • A. 300g
  • B. 200g
  • C. 150g
  • D. 30g

Correct Answer: D. 30g

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