Question

Composicion porcentual de nitrato de litio

Answer 1

formula LiNO3
Mm = 68.9 g/mol

Li: 1 x 6.9 = 6.9 g/mol
N: 1 x 14 0 14 g/mol
O: 3 x 16 = 48 g/mol
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       Mm = 68.9 g/mol

LITIO
68.9 g -- 100 %
 6.9 g ----  x
   x = 10.01 %

NITROGENO
68.9 g -- 100 %
 14 g ----  x
   x = 20.31 %

OXIGENO
 68.9 g -- 100 %
  48 g ----  x
   x = 69.66 %