Mole Conversion Practice Problems

Front

What is a mole?

Back

A mole is a unit of measurement in chemistry that represents 6.022 x 10^23 particles (atoms, molecules, ions, etc.).

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 10^23).

Front

What is Avogadro's number?

Back

Avogadro's number is 6.022 x 10^23, which is the number of particles in one mole of a substance.

Front

How many molecules are in 1 mole of water?

Back

1 mole of water contains 6.022 x 10^23 molecules of water.

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 is approximately 12.01 g/mol.

Front

How many grams are in 0.63 moles of carbon?

Back

0.63 moles of carbon is equal to 7.57 grams (0.63 moles x 12.01 g/mol).

Front

What is a formula unit?

Back

A formula unit is the lowest whole number ratio of ions in an ionic compound.

Front

How many formula units are in 1 mole of NaCl?

Back

1 mole of NaCl contains 6.022 x 10^23 formula units.

Front

How do you convert atoms to moles?

Back

To convert atoms to moles, divide the number of atoms by Avogadro's number (6.022 x 10^23).