What volume of is required to oxidize of in acidic medium? — Mole Concept and Some Basic Concepts of Chemistry Chemistry Question

💡 Solution & Explanation

n-factor $KMnO_4 = 5$ ($Mn^{+7} \rightarrow Mn^{+2}$). <br>n-factor $FeSO_4 = 1$ ($Fe^{+2} \rightarrow Fe^{+3}$). <br>$M_1V_1n_1 = M_2V_2n_2 \Rightarrow 0.1 \times V \times 5 = 0.2 \times 100 \times 1 \Rightarrow 0.5V = 20 \Rightarrow V = 40 \text{ mL}$. [1, 11]