Introduction to Moles and Chemical Calculations

These flashcards cover essential vocabulary related to moles, chemical equations, and basic chemistry concepts, as discussed in the lecture.

Mole

The SI unit for the amount of substance, representing 6.022 x 10²³ entities.

Avogadro's Number

6.022 x 10²³, the number of atoms or molecules in one mole of a substance.

Molar Mass

The mass of one mole of a substance, typically expressed in grams per mole.

Grams per mole

A unit that describes the mass of one mole of a substance.

Atomic Mass Unit (AMU)

A unit of mass used to express atomic and molecular weights.

Chemical Equation

A symbolic representation of a chemical reaction using formulas and coefficients.

Dimensional Analysis

A mathematical technique used to convert between units by multiplying by conversion factors.

Mass Percent

The percentage by mass of a particular component in a compound.

Reactants

The starting substances in a chemical reaction.

Products

The substances that are formed as a result of a chemical reaction.

Covalent Compound

A compound formed by the sharing of electrons between atoms.

Entities

General term referring to atoms, molecules, ions, or particles in the context of moles.

Conversion Factor

A ratio used to convert from one unit to another.

Periodic Table

A tabular arrangement of elements based on their atomic number, electron configurations, and recurring chemical properties.

Density

The mass per unit volume of a substance, often expressed in grams per cubic centimeter.

Compound

A substance formed when two or more elements chemically bond together.