How much charge is required for the following reductions? (i) 1 mol o

1.	How much charge is required for the following reductions? (i) 1 mol of Al3+ to Al (ii) 1 mol of Cu2+ to Cu (iii) 1 mol of MnO4- to Mn2+
Answer» (i) Al³⁺ + 3e → Al charge required = 3F (ii) Cu²⁺ + 2e → Cu charge required = 2F (iii) MnO^4- + 8H⁺ + Se^-→ Mn²⁺ + H₂O charge required = 5F

How much charge is required for the following reductions? (i) 1 mol of Al3+ to Al (ii) 1 mol of Cu2+ to Cu (iii) 1 mol of MnO4- to Mn2+

Answer»

(i) Al³⁺ + 3e → Al

charge required = 3F

(ii) Cu²⁺ + 2e → Cu

charge required = 2F

(iii) MnO^4- + 8H⁺ + Se^-→ Mn²⁺ + H₂O

charge required = 5F

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