Write the balanced chemical equation
Convert all given reactant amounts to moles
Use the mole ratio from the balanced equation to determine how much of one reactant is required for the other
Compare the available moles of each reactant to the required moles
Identify the reactant that is completely used up first as the limiting reactant
Subtract the amount of limiting reactant needed from the amount of the other reactant available
Convert the remaining moles of the excess reactant to the desired unit if needed
Report the reactant left over as the excess reactant and its remaining amount