Formula empirica de 26,57% k y 38,07% o
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Cr = 35.36 g/ 52 g/mol = 0.68 mol
O = 38.07 g/ 16 g/mol = 2.38 mol
dividir
K= 0.68 mol / 0.68 mol = 1 x 2 = 2
Cr=0.68 mol / 0.68 mol = 1 x 2 = 2
O = 2.38 mol / 0.68 mol = 3.5 x 2 = 7
multiplicar por 2, uno de los resultados tiene decimal
FE = K2Cr2O7