Copper Penny

How many moles of copper atoms are in a penny?

A pure copper penny contains approximately 3.0 times 10^{22} copper atoms. I keep forgetting how to convert atoms to moles. ANy help is greatly appreciated!

Copper atoms= 3* 10^22 atoms
Number of moles= Number of atoms/ Na...
.........Where Na is Avogadro's constant
Number of Moles= 3*10^22/ 6.022*10^23
= 0.0498 moles

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