Stoichiometry Lecture Notes

These flashcards cover key concepts in stoichiometry, chemical equations, and related definitions.

Chemical Equation

A representation of a chemical reaction that shows the reactants and products involved.

Reactants

Substances that undergo a chemical reaction, found on the left side of a chemical equation.

Products

Substances formed as a result of a chemical reaction, found on the right side of a chemical equation.

Stoichiometry

The quantitative relationship between the amounts of reactants and products in a chemical reaction.

Balanced Equation

A chemical equation that has equal numbers of each type of atom on both sides, adhering to the Law of Conservation of Mass.

Coefficient

A numerical factor that multiplies the number of atoms or molecules in a chemical equation.

Limiting Reactant

The reactant that is completely consumed in a chemical reaction, limiting the amount of product formed.

Excess Reactant

The reactant that remains after the limiting reactant is completely consumed.

Mole

A unit in chemistry representing 6.02×10²³ particles (Avogadro's number) of a substance.

Theoretical Yield

The maximum amount of product that could be formed from the given amounts of reactants.

Percent Yield

A measure of the efficiency of a reaction, calculated as (actual yield/theoretical yield) x 100.

Aqueous Solution (aq)

A solution in which water is the solvent.

Solid (s)

A physical state indicating matter that maintains a fixed shape and volume.