Verified Answer :

If you suppose standard temperature and
pressure, 1 mol = 22.4 liters.

33.6 liters 1mol/22.4liters = 1.5 mols.

Molar mass of carbon dioxide: 12 g/mol + 2x16 g/mol = 44 g/mol

Mass of 1.5 mols = 1.5mol
44 g/mol = 66 g.