Answer:
0.3736
Step-by-step explanation:
a mol is a quantity of substance that contains an Avogadro's number of molecules (6.022×10^23) But Gold as the others metals has no a definite molecule. Some authors consider than metals molecule monatomic so you would have n=
2.25×10^23 over
6.022×10^23
0.3736
in this case you have the moles of atoms of Gold