Question

calcula la composición centesimal del nitrato de sodio NaNO3...ayuda porfa

Answer 1

Mm NaNO3

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

SODIO

85 g ----- 100 %
23 g -----      x

x = 27.05 % Na

NITROGENO

85 g ---- 100 %
14 g ----  x

x = 16.47 % N

OXIGENO

85 g ----- 100 %
48 g ----    x

x = 56.47 % O