How many atoms are in 2.0 mol of Cu?

Dec 26, 2015

$1.204 \times {10}^{24}$

Explanation:

The mole is simply a number: specifically, $6.02 \times {10}^{23}$. It is in the same league as "million" or "thousand", but is more complex in the fact that it is a single number rather than a 'place value'.

So the fact that you are looking at copper in particular is irrelevant if you're just looking for the number of atoms in 2 moles of a substance.

In order to work this out, multiply Avogadro's number - the one I stated at the start of this explanation - by $2$. This will give you the number of molecules in $2$ moles of a substance.

In other words, 1 mole of atoms is $6.02 \times {10}^{23}$ atoms. 1 mole of molecules is $6.02 \times {10}^{23}$ molecules. 1 mole of kittens is $6.02 \times {10}^{23}$ kittens (but don't try this atom home because the sheer cuteness is nigh on toxic).