The density of a gas is 1.78 g L –1 at STP. The weight of one mole of gas is

Chemistry · Class 11 · CBSESome Basic Concepts of Chemistry

The density of a gas is 1.78 g L–1 at STP. The weight of one mole of gas is
  1. 39.9 g
  2. 22.4 g
  3. 3.56 g
  4. 29 g

Answer

(A) 39.9 g

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