Question: Skip-Step Potentials A skip-step potential is a potential when some intermediate species in the Latimer diagram has been left out. E.g. water will not be

Skip-Step Potentials A skip-step potential is a potential when some intermediate species in the Latimer diagram has been left out. E.g. water will not be oxidized by Mno, going to Mno since this is less than +1.23V (H20/0, is -1.23V). However the skip-step potential MnO,-to MnO, is 1.70V. Q3. Show that Mno, can oxidise water to dioxygen. Remember rule about electrode potentials. Calculate AG Q4. Aqueous potassium permanganate can be standardised using portions of sodium oxalate under acid conditions. Show that this reaction is feasible under standard conditions (E/V: MnO "/Mn2+ = 1.51; CO,/H.C20= -0.432)

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