Answer: [tex]3.01*10^2^3[/tex]
Explanation:
1. Find molar mass of Al. this is around 26.98g
2. Find moles of Al as you have to convert to moles to be able to use Avogadro's number.
(mass of sample/molar mass) = 13.5/26.98=0.5
3. Convert moles into atoms.
[tex]0.5(6.02 *10^2^3)[/tex] =[tex]3.01*10^2^3[/tex]
Hope this helps :)
