31. 4.4 g of an unknown gas occupies 2.24 litres of volumeat STP. The

1.	31. 4.4 g of an unknown gas occupies 2.24 litres of volumeat STP. The gas may be(1 carbon dioxide 2) carbon monoxide(3) oxygen(4) sulphur dioxide
Answer» At STP 22.4L of any gas (assuming its ideal nature)≡ 1g-molecular i.e. 1mole of that gas here2.24 L of volume at STP≡ 4.4g ∴ 22.4Lof volume at STP≡ 44gSo, molecular mass of the gas is 44g/molThe gas may be CO2, C3H8(Propane) hence, option (a) is correct but how 22.4L of volume at STP=44g

31. 4.4 g of an unknown gas occupies 2.24 litres of volumeat STP. The gas may be(1 carbon dioxide 2) carbon monoxide(3) oxygen(4) sulphur dioxide

Answer»

At STP 22.4L of any gas (assuming its ideal nature)≡ 1g-molecular i.e. 1mole of that gas

here2.24 L of volume at STP≡ 4.4g ∴ 22.4Lof volume at STP≡ 44gSo, molecular mass of the gas is 44g/molThe gas may be CO2, C3H8(Propane)

hence, option (a) is correct

but how 22.4L of volume at STP=44g