Mole to Molecule

Front

What is Avogadro's Number?

Back

6 x 10^23

Front

How many moles are in 2.91 X 10^22 atoms of He?

Back

0.0483 moles He

Front

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

Back

1 mole

Front

How many atoms are in 1.50 moles of Hg?

Back

9.03 x 10^23 atoms Hg

Front

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

Back

1.38 moles H2O

Front

Define a mole in chemistry.

Back

A mole is a unit that measures the amount of substance, defined as 6.022 x 10^23 particles (atoms, molecules, etc.).

Front

What is the relationship between moles and molecules?

Back

1 mole of any substance contains Avogadro's number (6.022 x 10^23) of molecules.

Front

How do you convert atoms to moles?

Back

Divide the number of atoms by Avogadro's number (6.022 x 10^23).

Front

If you have 3 moles of a substance, how many molecules do you have?

Back

3 moles x 6.022 x 10^23 molecules/mole = 1.81 x 10^24 molecules.

Front

What is the formula to calculate moles from mass?

Back

Moles = Mass (g) / Molar Mass (g/mol).