Question

9. Halla el porcentaje de magnesio en: MgSO4. P. A. (Mg = 24, S = 32, O = 16)

Answer 1

MgSO4

Mg:  1 x 24 = 24 g/mol

S: 1 x 32 = 32 g/mol

O:  4 x 16 = 64 g/mol
``````````````````````````````````
     Mm = 120 g/mol

Mg
120 g --- 100%
24 g ------  x
x = 20 %

S:
120 g --- 100%
  32 g ------  x
x = 26.67 %

O:
120 g --- 100%
64 g ------  x
x = 53.3 %