Mole Conversions

Front

What is a mole in chemistry?

Back

A mole is a unit of measurement used to express the amount of a substance, defined as containing exactly 6.02 x 10^23 particles (atoms, molecules, ions, etc.).

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

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 grams per mole).

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 grams per mole).

Front

What is the molar mass of CO2?

Back

The molar mass of CO2 (carbon dioxide) is approximately 44.01 g/mol.

Front

How many moles are in 32.3 grams of CO2?

Back

0.73 moles.

Front

What is the purpose of using moles in chemistry?

Back

Moles are used to measure the amount of atoms or molecules in a substance, allowing chemists to perform calculations involving chemical reactions.

Front

How many atoms are in one mole of any element?

Back

There are 6.02 x 10^23 atoms in one mole of any element.

Front

What is the relationship between moles and volume for gases at STP?

Back

At standard temperature and pressure (STP), one mole of an ideal gas occupies 22.4 liters.

Front

How do you find the number of molecules in a given number of moles?

Back

To find the number of molecules, multiply the number of moles by Avogadro's number (6.02 x 10^23).