Question

Compocision porcentual hidróxido de potasio

Answer 1

KOH

calcular masa molecular

K: 1 x 39 = 39 g/mol
O: 1 x 16 = 16 g/mol
H: 1 x 1 = 1 g/mol
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         Mm = 56 g/mol

Potasio:

56 g ---- 100 %
39 g ----      x
  x = 69.64 % K

Oxigeno:

56 g ----- 100 %
16 g -----    x
 x = 28.57 % O

Hidrógeno:

56 g ---- 100 %
  1 g ----    x
x = 1.79 % H