Avogadro's Number

Avogadro's Number

6.022 x 10^23, represents the number of objects (atoms or molecules) in one mole.

Mole

A unit in chemistry that represents 6.022 x 10^23 particles (atoms or molecules).

Molar Mass

The mass of one mole of an element or compound, expressed in grams.

Relationship between Moles and Mass

1 mole of an element/compound = its molar mass in grams.

Conversion Factor

A ratio used to convert between different units, such as moles and atoms.

Percent Composition

The percentage by mass of each element in a compound, calculated using (mass of element / mass of compound) x 100.

Calcium Fluoride Molar Mass Calculation

Calculated by adding the mass of one calcium and two fluorine atoms.

Sig Figs (Significant Figures)

Digits that carry meaningful information about precision in measurements.

Atomic Mass

The mass of an atom, usually expressed in grams per mole, found on the periodic table.

Two-step conversion

A method used to convert grams to moles, then moles to atoms.