Calculate mass of CO2 containing same number of oxygen atoms as in 3g of NO. Share with your friends Share 3 Geetha answered this First calculate the number of atoms of oxygen in NONo of mole =Given mass in gMolar mass = 330 = 0.1 molNo of molecules of NO = Mole × Avogadro number = 0.1× 6.022 × 1023 = 6.022 × 1022 Molecules1 molecule of NO has 1 atom of oxygenSo 6.022 × 1022 molecule contain = 6.022 × 1022 atoms of oxygenGiven that the number of atoms of oxygen in NO and CO2 are equal. 1 Molecule of CO2 contain 2 atoms of oxygenSo 6.022 × 1022 atoms of oxygen is present in = 6.022 × 10222 = 3.011 ×1022 MoleculeNo of mole = No of moleculesAvogadro number = 3.011 × 10226.022 × 1023 = 0.05 molNo of mole = Given mass in gMolar massGiven mass in g = No of mole × molar mas = 0.05 × 44 = 2.2 gThus the mass of CO2 = 2.2 g 16 View Full Answer