Mole conversions

Front

What is a mole in chemistry?

Back

A mole is a unit of measurement used to express amounts of a chemical substance, defined as exactly 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 atoms, molecules, or particles in one mole of a substance.

Front

How do you convert molecules to moles?

Back

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

Front

What is the molar mass of a substance?

Back

The molar mass is the mass of one mole of a substance, typically expressed in grams per mole (g/mol).

Front

How do you calculate the mass of a substance from moles?

Back

To calculate the mass, multiply the number of moles by the molar mass of the substance.

Front

What is the mass of 1 mole of carbon dioxide (CO2)?

Back

The molar mass of CO2 is approximately 44.01 g.

Front

How many grams are in 2 moles of water (H2O)?

Back

There are approximately 36.02 grams in 2 moles of water (H2O).

Front

How do you find the number of moles from mass?

Back

To find the number of moles, divide the mass of the substance by its molar mass.

Front

What is the mass of 1 mole of sodium chloride (NaCl)?

Back

The molar mass of NaCl is approximately 58.44 g.