How do you calculate molecules to moles?

To calculate the number of moles in a given number of molecules, you need to divide the number of molecules by Avogadro's number, which is approximately 6.022 x 10^23 molecules per mole.

For example, if you have 3.61 x 10^21 molecules of carbon dioxide (CO2), you can calculate the number of moles as follows:

Number of moles of CO2 = 3.61 x 10^21 molecules / 6.022 x 10^23 molecules/mole

= 0.0006 moles of CO2

Therefore, 3.61 x 10^21 molecules of carbon dioxide is equivalent to 0.0006 moles.