Consider the following reaction: 2N2(g) + 5O2(g) + 2H2O(g) --> 4HNO3(g). If a reaction mixture contains 28g of N2, 150g of O2, and 36g of H2O, what is the limiting reactant?
You have the equation:
You have been given the masses of each reagent. These are molar quantiies when we divide them by the molecular mass of each reagent:
It doesn't too much arithmetic to realize that the in terms of molar quantities you have