Mass relationships in chemical reaction.Make a solution

For the combustion of methane, beginning with 3.15 mole of CH4.
How many moles of CO2 are obtained when the CH4 is completely combusted?

The balanced chemical equation for the combustion of methane is:

CH4 + 2O2 -> CO2 + 2H2O

This equation tells us that for every one mole of CH4 that is combusted, one mole of CO2 is produced. Therefore, we can use the stoichiometry of the equation to calculate how many moles of CO2 will be obtained when 3.15 moles of CH4 are combusted.

3.15 mole CH4 x (1 mole CO2 / 1 mole CH4) = 3.15 mole CO2

Therefore, when 3.15 moles of CH4 is completely combusted, 3.15 moles of CO2 will be obtained.