From Molecules to Moles: Understanding Avogadro's Number

• 1 mole

• 2 moles

• 0.5 moles

• 4 moles

• 0.5 moles

• 1 mole

• 1.5 moles

• 2 moles

To convert molecules to moles, you need to ​ (a)   ​ (b)   by Avogadro's number. To convert moles to molecules, you need to ​ (c)   ​ (d)   by Avogadro's number.

• the number of molecules
• multiply
• the number of moles
• divide

Avogadro's number tells us ​ (a)   . This number is ​ (b)   . In order change the number of molecules into the number of moles we use the number of molecules ​ ​ (c)   Avogadro's number. If we want to go the opposite direction and change the number of moles to the number of molecules, we use the number of moles ​ (d)   Avogadro's number.

• the number of particles in a mole
• 6.022 x 10^23
• divided by
• multiplied by

Match the following moles to the number of molecules. Remember Moles = Number of molecules/ Avogadros' number

• 1.506 x 10^23 molecules

• 1 mole
• 2.408 x 10^24 molecules

• 4 moles
• 1.204 x 10^24 molecules

• 2 moles
• 6.022 x 10^23 molecules

• .25 moles
• 3.011 x 10^23 molecules

• .5 moles