Question

how many moles of oxygen atom are present in 1 mole of CO2

Answer 1

1 molecule of CO2 = 1 C atom + 2 O atom.

1 mole of CO2 = 6.02 x 10*23 CO2 molecules

So, 1 mole of CO2 contains (2 x 6.02 x 10*23) O atoms

So, 3 moles of CO2 contains (3 x 2 x 6.02 x 10*23) O atoms = 3.61 x 10*24 O atoms.



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