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.) of a substance.

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 moles to atoms?

Back

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

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).

Front

How many atoms are in 1 mole of any element?

Back

1 mole of any element contains 6.022 x 10^23 atoms.

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How many moles are in 6 x 10^23 molecules of H2O?

Back

There is 1 mole in 6 x 10^23 molecules of H2O.

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How many moles are in 8.30 x 10^23 molecules of H2O?

Back

There are 1.38 moles in 8.30 x 10^23 molecules of H2O.

Front

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

Back

To calculate the number of molecules, multiply the number of moles by Avogadro's Number (6.022 x 10^23).

Front

If you have 2.91 x 10^22 atoms of He, how many moles do you have?

Back

You have 0.0483 moles of He.

Front

What is the relationship between moles and molecules?

Back

1 mole of a substance contains 6.022 x 10^23 molecules of that substance.