Answer:
Step-by-step explanation:
1mole of copper = 6.02 * 10^23 particles of copper
x mol of copper =2.2 * 10^23 particles
This is a proportion. All you need do is solve using the rules of proportions.
1/x = 6.02 * 10^23/2.2 * 10^23 Cross multiply
6.02 * 10^23x = 1* 2.2*10^23 Divide by 6.02 * 10^23
x = 2.2*10^23 / 6.02* 10^23
x = .365 mols of copper