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Considere la valoracin de 25,0 ml de Sn2+ 0,0500 M con Fe3+ 0,100 M en HCl 1 M para obtener Fe2+ y Sn4+, utilizando electrodos

Considere la valoracin de 25,0 ml de Sn2+ 0,0500 M con Fe3+ 0,100 M en HCl 1 M para obtener Fe2+ y Sn4+, utilizando electrodos de Pt y calomelanos.

(a) escriba una reaccin de titulacin balanceada

(b) escriba dos semirreacciones para el electrodo indicador

(c) escriba dos ecuaciones de Nerst para el voltaje de la celda

(d) calcule E con los siguientes volmenes de Fe3+: 1,0, 12,5, 24,0, 25,0, 26,0 y 30,0 mL. Dibuje la curva de titulacin.

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