Lecture 2_8-21-25 Dimensional Analysis, Mole, Limiting Reactant File

Flashcards covering key definitions and concepts from the chemistry lecture notes, including units, Avogadro's number, molar mass, and stoichiometry principles.

Atom

The basic unit of matter.

Molecule

A group of two or more atoms held together by chemical bonds.

Gram

A unit of mass, commonly used in chemistry to measure substances.

Mole

A standard unit of amount in chemistry, linking the number of particles to the mass of a substance.

Avogadro's Number

The number of particles (atoms or molecules) in one mole, equal to 6.022 x 10^23.

Molar Mass

The mass of one mole of any substance, expressed in grams per mole (g/mol), calculated by summing the atomic masses of all atoms in the substance.

Conversion Factor

A ratio or relationship that must be true, used to convert from one unit or quantity to another.

Stoichiometry

The calculation of quantities of reactants and products in chemical reactions.

Limiting Reactant

The reactant in a chemical reaction that is completely consumed and determines the amount of product that can be formed.