Stoichiometry: Excess and Limiting Reactants Percent Yield

In this section, we learned that for a balanced equation, there is some conditions that the reaction may not present ( may be caused by pressure, temperature, concentration, etc.). Sometimes it is necessary to add more reactant into the chemical reaction in order to react.

One reactant is the EXCESS QUANTITY that would have some left overs at the end. The second reactant is used up is called the LIMITING QUANTITY.

The videos belows tells you how to calculate excess quantities and limiting quantities based on the equation.
ENJOY!