How many copper atoms are in 5.6 moles of Cu_2O?

1 Answer
Mar 24, 2016

I found 6.74×10^(24) Cu atoms.

Explanation:

In one mole you have Avogadro's number (6.022×10^(23)) of objects, in this case 'formula units' of Cu_2O.

So, in 5.6 moles we have:

5.6×6.022×10^(23) formula units of Cu_2O, each one with 2 Cu atoms giving:

2×5.6×6.022×10^(23)=6.74×10^(24) atoms of Cu...