Mole Conversions (Moles-Grams-Molecules)

Front

What is a mole?

Back

A mole is a unit of measurement in chemistry that represents 6.022 x 10²³ particles (atoms, molecules, ions, etc.).

Front

How do you convert moles to grams?

Back

To convert moles to grams, multiply the number of moles by the molar mass of the substance (g/mol). Formula: grams = moles × molar mass.

Front

What is the molar mass of sodium bromide (NaBr)?

Back

The molar mass of sodium bromide is approximately 102.89 g/mol.

Front

How do you convert moles to molecules?

Back

To convert moles to molecules, multiply the number of moles by Avogadro's number (6.022 x 10²³). Formula: molecules = moles × 6.022 x 10²³.

Front

What is Avogadro's number?

Back

Avogadro's number is 6.022 x 10²³, which is the number of particles in one mole of a substance.

Front

What is the empirical formula?

Back

The empirical formula is the simplest whole-number ratio of elements in a compound.

Front

How do you determine the molecular formula from the empirical formula?

Back

To determine the molecular formula, multiply the subscripts in the empirical formula by a whole number that makes the molar mass equal to the given molecular molar mass.

Front

What is the molar mass of water (H₂O)?

Back

The molar mass of water is approximately 18.02 g/mol.

Front

How do you calculate the molar mass of a compound?

Back

To calculate the molar mass, sum the atomic masses of all atoms in the molecular formula.

Front

What is the molecular formula of glucose?

Back

The molecular formula of glucose is C₆H₁₂O₆.