Chapter 9 Stoichiometry Vocabulary

Composition Stoichiometry

Deals with the mass relationships of elements in compounds

Reaction Stoichiometry

Involves the mass relationships between reactants and products in a chemical reaction

Mole Ratio

A conversion factor that relates the amounts in moles of any two substances involved in a chemical reaction

Limiting Reactant

The reactant that limits the amount of the other reactant that can combine and the amount of product that can form in a chemical reaction

Excess Reactant

The substance that is not used up completely in a reaction

Percentage Yield

The ratio of the actual yield to the theoretical yield, multiplied by 100

Theoretical Yield

The maximum amount of product that can be produced from a given amount of reactant

Actual Yield

The measured amount of a product obtained from a reaction

In most chemical reactions the amount of product obtained is _________

is less than the theoretical amount

When the limiting reactant in a chemical reaction is used, the ________

reaction stops