Answer: 3.61 x 10*24 O atoms.
-Explanation -
1 molecule of CO2 equals 1 C atom + 2 O atom.
1 mole of CO2 equals 6.02 x 10*23 CO2 molecules
Therefore , 1 mole of CO2 contains (2 x 6.02 x 10*23) O atoms, which means that 3 moles of CO2 contains (3 x 2 x 6.02 x 10*23) O atoms
