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Actual Yield
The amount of product actually formed in a reaction.
Excess Reactant
The reactant that is not used up in a chemical reaction.
Limiting Reactant
The reactant that determines the amount of product formed.
Percent Yield
A measure of the amount of a product actually formed in a chemical reaction compared to the amount expected to form.
Stoichiometry
The relationships among the quantities of reactant and products involved in chemical reactions.
Theoretical Yield
The amount of product expected to be formed based on calculations dealing with the initial reactants.