How many moles of are required to oxidize of in acidic medium? — Mole Concept and Some Basic Concepts of Chemistry Chemistry Question

💡 Solution & Explanation

Reaction: $Fe_2(C_2O_4)_3 \rightarrow 2Fe^{3+} + 3C_2O_4^{2-}$. <br>In acidic medium, only the oxalate ions are oxidized to $CO_2$ (total $6e^-$ transfer per unit). <br>$5 \times \text{moles } KMnO_4 = 1 \times 6 \Rightarrow \text{moles} = 1.2$.