How many atoms are in 3.3 mol Cu?

A mole is a constant number used in Chemistry, defined as 6.022 x 10^23 units of something (this number is known as Avogadro’s number). Since you have 3.3 moles of copper, the number of atoms is 3.3 times Avogadro’s number, or 2.0 x 10^24 atoms (rounded for significant figures).

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