Question

cual es el porcentaje del azufre trío ido de azufre

Answer 1

Mm SO3 = 80 g/mol

S: 1 X 32 = 32 g/mol
O: 3 x 18 = 48 g/mol
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          Mm = 80 g/mol

Azufre

  80 g ------ 100 %
  32 g ------      x
 
           x = 40 % S

Oxigeno

 80 g  ---- 100 %
 48 g -----    x

       x = 60 % O