Relax

Respuesta :

mFe: 56 g/mol
..........

56g ----- 1 mol
5g ------- X
X = 5/56 = 0,089 moles of Fe

56g ----- 6,02×10²³ atoms
5g ------- X
X = (5×6,02×10²³)/56
X = 0,5375×10²³ = 5,375×10²² atoms of Fe

:•)