Question

Calculeaza masa moleculara pentru: FeSO4, AlCl3, N2O3.​

Answer 1

M(FeSO4)=A(Fe)+A(S)+4A(O)

=56+32+4 ori 16

=88+64

=152 g/mol

M(AlCl3)=A(Al)+3A(Cl)

=27+3 ori 35,5

=27+106,5

=133,5 g/mol

M(N2O3)=2A(N)+3A(O)

=2 ori 14 + 3 ori 16

=28+48

=76 g/mol