If we completely combust a #2.40xx10^-3*g# mass of methane, what is the mass of water evolved?
You should be able to represent these combustion reactions by means of an equation........
Now not only are atoms, and MASS stoichiometrically balanced, i.e.
We combust a molar quantity of
And given the stoichiometry of the reaction........we get
Given combustion of EQUIMOLAR methane and ethane, would you predict that