chem1:Stoichiometry

Vocabulary flashcards based on key concepts from the Stoichiometry lecture notes.

Stoichiometry

The subject matter in chemistry that tells the quantity of one substance that reacts with some quantity of anything else in a chemical reaction.

Atomic Mass

The mass of an atom of a chemical element expressed in atomic mass units or amu, approximately equivalent to the number of protons and neutrons in the atom.

Formula Mass

The sum of the atomic weights of the atoms in the empirical formula.

Molecular (Molar) Mass

Mass of a given substance divided by the amount of substance, calculated from the sum of the atomic weights of the atoms in the molecular formula.

Mole to Mass Conversion

A process to find the mass of a substance based on its moles using the molar mass.

Balanced Equation

An equation in which the number of atoms for each element is equal on both sides.

grams of Cl₂ produced

Amount of Chlorine gas produced from the reaction of sodium chloride, calculated by stoichiometric ratios.

Molar Mass of sodium chloride (NaCl)

The total mass of one mole of sodium chloride, approximately 58.44 g/mol.

Empirical Formula

A formula that shows the simplest whole-number ratio of the elements in a compound.

Amu

Atomic mass unit, a standard unit of mass that quantifies mass on the atomic or molecular scale.