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Problema 8. Anlisis espectrofotomtrico. Se disolvi una muestra de 0.525 g de una aleacin de acero, el manganeso se oxid a permanganato y la solucin

Problema 8. Anlisis espectrofotomtrico. Se disolvi una muestra de 0.525 g de una aleacin de acero, el manganeso se oxid a permanganato y la solucin se diluy a 100 ml en un matraz volumtrico. La absorbancia a 525 nm en una celda de 1,00 cm fue de 0,496. La absortividad molar de MnO 4 - a 525 nm es 2,24x10 3. Calcular el porcentaje de Mn en el acero.

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