Front

What is a mole?

Back

A mole is a unit of measurement in chemistry that represents 6.02 x 10^23 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 (in g/mol).

Front

What is the molar mass of Carbon (C)?

Back

The molar mass of Carbon (C) is 12.01 g/mol.

Front

How do you convert grams to moles?

Back

To convert grams to moles, divide the mass of the substance (in grams) by its molar mass (in g/mol).

Front

What is Avogadro's number?

Back

Avogadro's number is 6.02 x 10^23, 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 atoms of each element in a compound.

Front

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

Back

To find the molecular formula, multiply the subscripts in the empirical formula by a whole number that makes the molar mass match the given molecular mass.

Front

What is the molar mass of water (H2O)?

Back

The molar mass of water (H2O) is 18.02 g/mol.

Front

How do you calculate the molar mass of a compound?

Back

To calculate the molar mass, sum the molar masses of all the atoms in the compound's formula.

Front

What is the relationship between moles and molecules?

Back

1 mole of any substance contains 6.02 x 10^23 molecules of that substance.