Question

how many moles of Methane are required to produce 22 gram of CO2 after combustion

Answer 1

1 mole of CH4(methane) produces 1 mole of CO2 i.e 44gm.

So for producing 22gm of CO2--> 1/2 mole of methane would be required.

Hope it helps.

Answer 2

 one mole of CH4(methane) produces 1 mole of CO2 it is  44gm.