Stoichiometry of Formulas and Equations

Flashcards covering key concepts in stoichiometry, including definitions of moles, Avogadro's number, molar mass, and related calculations.

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

The number of entities in one mole, approximately 6.022 imes 10^{23}.

Molar Mass (MM)

The mass of a mole of its entities (atoms, molecules, or formula units) in grams per mole (g/mol).

Atomic Mass Unit (amu)

A unit of mass used to express atomic and molecular weights; numerically equivalent to a molar mass in g/mol.

Entities

Particles that can be atoms, ions, molecules, formula units, or electrons.

Formula Mass

The mass of one formula unit of a compound expressed in amu.

Molar Mass of Water (H2O)

The molar mass of H2O is 18.02 ext{ g/mol}.

Mass of Carbon (C) in Glucose (C6H12O6)

Each mole of glucose contains 6 moles of carbon with a mass of 12.01 ext{ g} per mole.

Molar Mass of Sodium Chloride (NaCl)

The molar mass of NaCl is 58.44 ext{ g/mol}.

Interconversion Equations

Equations used to convert between mass, moles, and number of entities, including ext{mass} = n imes ext{molar mass} and ext{number of entities} = n imes N_A.