The equation for a complete combustion reaction of CH4 is :
CH4 + 2 O2 = CO2 + 2 H2O, showing that one mole of carbon dioxide is formed for each mole of CH4 burned. Therefore, the answer is 44 moles of CO2 formed.
CH4 + 2O2 -> 2H2O + CO2
MCH4=16 g/mol . . . . MCO2= 44 g/mol
4 g CH4 = 4/16 mol -> 0.25 mol CO2 = 0.25*44 = 11 g CO2
CH4+2O2---->CO2+2H2O.One mole gives one mole of CO2.So 44 moles of CO2 is formed
it will have about 14