Thank you! But just to clarify, may i know why 83.33 mol of carbon is equivalent to mol of carbon dioxide too? How come dont have to take into consideration the o2 in CO2?

And what do u mean volume is proportional to mol ratio? They are the same?

One mole of any gas is assume to occupy the same volume under the same T & P. So vol ratio n mole ratio same

83.33 mol of co2 consists of 83.33 mol of C atoms and 166.66 mol of O atoms. In other words, every 1 mol of CO2 consists of 1 mol of C

I see, okay thank you very much for the explanation!!