When 0.1 mole of MnO ₄ ²⁻ is oxidised, the quantity of electricity required to completely oxidise MnO ₄ ²⁻ to MnO ₄⁻ is

Step-by-step solution

The oxidation reaction of manganate ion to permanganate ion is given by: MnO ₄²⁻ MnO ₄⁻ + e⁻ In this reaction, the oxidation state of manganese changes from +6 to +7 . Thus, 1 mole of MnO ₄²⁻ requires 1 mole of electrons for complete oxidation to MnO ₄⁻ . Given that 0.1 mole of MnO ₄²⁻ is to be oxidized, the number of moles of electrons required is 0.1 mole. The quantity of electricity Q is given by Q = n F , where n is the number of moles of electrons and F is the Faraday constant ( 96500 C mol ⁻¹ ). Q = 0.1 mol 9