Calculate the following :
Has higher mass : 1 mole of CO2 or 1 mole of CO [C = 12, O = 16]
1 mole of CO2 has mass = 12 + (16 x 2 ) = 44g
1 mole of CO has mass = 12 + 16 = 28 g
∴ Mass of 1 mole of CO2 has more mass.