Molten Fe₂O₃ is electrolyzed so that metallic iron forms at the cathode while O₂(g)…
CHEMISTRY · Subjective · AP · Chemistry · Thermodynamics and Electrochemistry · Thermodynamics and Electrochemistry
Problem
Molten Fe₂O₃ is electrolyzed so that metallic iron forms at the cathode while O₂(g) evolves at the anode. After a certain time, 0.224 g of Fe is recovered and 73.4 mL of O₂(g) is collected at 25 °C and 1.00 atm. Assuming 100 % current efficiency and stoichiometric Fe₂O₃, determine the oxidation state of iron in this oxide.