Limiting Reactants

In Chemical reactions, usually one chemical gets used up first before the other. The chemical used up first in a chemical reaction is called the limiting reactant.

Once it is used up, the reaction stops! Limiting reactants determines the quantity of products formed.

To find the Limiting Reactant, assume one reactant is used up. Determine how much of this reaction is required!

Remember the very important equation for this:

Actual / Theoretical x 100% = % yield

Try some limiting reactant problems!