How long will it take to produce 0.10 mole of HNO2 by this reaction if a current of 10 A passes thro — Electrochemistry Chemistry Question

💡 Solution & Explanation

From the reduction half-reaction, producing 1 mole of HNO2 requires 2 Faradays of charge (2 moles of electrons). Thus, producing 0.10 moles of HNO2 requires 0.20 moles of electrons. Total charge Q = 0.20 F = 0.20 × 96500 C = 19300 C. Since Q = I × t, the time t = Q / I = 19300 C / 10 A = 1930 s.