Question

Señalar el peso fórmula de cada compuesto (gramo/unidad)
I. CaCO3
II.NaNO3
III.K2SO3
Dato: m.A. (Na=23,N=14,K=39)

Answer 1

I. CaCO3
Ca: 1 x 40 = 40  g/mol
 C:  1 x 12 = 12 g/mol
 O: 3 x 16 = 48 g/mol
````````````````````````````````
           Mm = 100 g/mol

II. NaNO3

Na: 1 x 23 = 23 g/mol
  N: 1 x 14 = 14 g/mol
  O: 3 x 16 = 48 g/mol
``````````````````````````````````
         Mm = 85 g/mol

III.K2SO3
K:  2 x 39 = 78 g/mol
S:  1 x 32 = 32 g/mol
O:  3 x 16 = 48 g/mol
````````````````````````````````
           Mm = 158 g/mol