Question

How many atoms are in 2.0 mol of Cu?

Answer 1

`1.204 xx 10^24`

Explanation:

The mole is simply a number: specifically, `6.02 xx 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 xx 10^23` atoms. 1 mole of molecules is `6.02 xx 10^23` molecules. 1 mole of kittens is `6.02 xx 10^23` kittens (but don't try this atom home because the sheer cuteness is nigh on toxic).