Converting between Moles to Molecules to Atoms

In this conversion, A mole of any substance is 6.02×10²³ molecules of that substance.

To convert moles to atoms, you first convert the mole to molecules then use the element's subscripts and multiply it to the answer.

0.001 moles water ×

(

6.02×1023 water molecules 1 mole water

)

= 6.02×1020 water molecules

100 water molecules ×

(

1 mole water 6.02×1023 water molecules

)

= 1.66× 10-22 moles water

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