Chapter 3: Stoichiometry of Formulas and Equations

These flashcards cover key vocabulary terms and definitions from Chapter 3: Stoichiometry of Formulas and Equations, aiding in the understanding of fundamental concepts in chemistry.

Mole (mol)

The amount of a substance that contains the same number of entities as there are atoms in exactly 12 g of carbon-12.

Avogadro's Number

6.022 × 10^23 entities per mole, it represents the number of particles in one mole of a substance.

Molecular Mass

The sum of the atomic masses of all atoms in a molecule.

Empirical Formula

The simplest formula that indicates the ratio of elements in a compound.

Molar Mass (M)

The mass of one mole of a substance, expressed in grams per mole (g/mol).

Stoichiometry

The relationship between the relative quantities (in moles) of substances taking part in a reaction or forming a compound.

Limiting Reactant

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

Actual Yield

The amount of product that is actually obtained from a reaction, typically less than the theoretical yield.

Theoretical Yield

The maximum amount of product that can be obtained from a given amount of reactant, calculated based on stoichiometric ratios.

Percent Yield

The ratio of the actual yield to the theoretical yield, multiplied by 100 to express it as a percentage.