MFe = 56 g/mol
6.02 * 10²³ atomów ------ 56g
60.2 * 10 ²³ atomów ------ xg
x = (60.2 * 10 ²³ * 56) / (6.02 * 10²³) =(60.2 * 56) / 6.02 = 3371.2 / 6.02 = =560g/mol
Odp: 560 g/mol
