Question

Calculeaza masele molare ale elementelor a)S C P Mg Zn Al b)H2 N2 O2 Br2 Cl2 F2

Answer 1

a)S- 32g/mol    b)H2-1*2=2g/mol
C-12g/mol          N2-14*2=28g/mol
P-31g/mol          O2-16*2=32g/mol
Mg-24g/mol       Br2-80*2=160g/mol
Zn-65g/mol        Cl2-35,5*2=71g/mol
Al-27g/mol        F2-19*2=38g/mol