Question

At STP, the mass of 1.12L of a gas is 4g. the vapour density of the gas is what​

Answer 1

Answer:

4.4 g of a gas at STP occupies a volume of 2.24 L. The gas can be  CO2

At STP, 1 mole of any gas occupies a volume of 22.4 L.

 4.4 g of a gas at STP occupies a volume of 2.24 L.

Hence, the number of moles of gas =22.42.24=0.1 moles.

0.1 moles of a gas = 4.4 g.

1 mole of a gas =4.4×0.11=44  g.

Thus, the molecular weight of gas is 44 g/mol. It is the molecular weight of CO2 gas.