A,Mg= 24 M,Mg= 24g/mol
A,Fe= 56 M,Fe=56g/mol
A,Zn=65 M,Zn=65g/mol
1mol Mg ...are N,A atomi
4mol.................N=4N,A = 4x6,023X10²³ atomiMg=........................calculeaza
la fel se calculeaza si la Fe si Zn
N.Fe= 0,2x6,023x10²³ atomi......................calculeaza!!!
N,Zn= 1/3x6,023x10²³ at=..........................calculeaza !!!
N,A este bunarul lui Avogadro; se aplica relatia : N=n,molxN,A atom/mol
