Question

Calculate the amount of Co2 formed in complete combustion of 80g of methane as per the reaction

Answer 1

80g methane is 5 moles
1mole CH4 produces 1 mole CO2 (by POAC)
So 5 moles CO2 will be produced in this case
Hence, mass of CO2 produced
=molecular wt. * no of moles
=44*5
=220g

Answer 2

Indeed, yet first, your condition isn't right. On the left-hand side you ought to have O2, not CO2.

Change over the 80g of CH4 to moles by isolating by the molar mass.

At that point for each mole of CH4 you will get one mole of CO2, so the quantity of moles of CO2 you get is the same as the quantity of moles of CH4.

At that point change over Moles of CO2 to grams of CO2 by duplicating by the molar mass of CO2.