A gas is held under conditions of standard temperature and pressure. It is found that 44.0 grams of the gas occupies a volume of 22.4 L under these conditions. What is the gas?

Question

CO2

F2

O2

Cl2

N2

Answer 1

The gas would be CO₂ (carbon dioxide). The reason for this is that at STP, ONE MOLE of an idea gas occupies 22.4 L. Since the molar mass of CO2 is 44 g/mol, this would be 1 mole and hence the volume will be 22.4 L.