Balancing Redox Reactions in Acidic Media

Balancing Redox Reactions in Acidic Media

  • Problem: Determine the stoichiometry coefficients for the balanced redox reaction in acidic media.

  • Given Reaction:
    SO<em>2(g)+Cu(s)+H</em>2O+H+(aq)+OH−(aq)→S<em>2O</em>32−(aq)+Cu2+(aq)+H2O+H+(aq)+OH−(aq)SO<em>2(g) + Cu(s) + H</em>2O + H^+(aq) + OH^-(aq) \rightarrow S<em>2O</em>3^{2-}(aq) + Cu^{2+}(aq) + H_2O + H^+(aq) + OH^-(aq)

  • Possible Stoichiometry Coefficients (in order):

    • (a) 2, 2, 0, 2, 0 → 1, 2, 1, 0, 0
    • (b) 2, 1, 1, 0, 0 → 1, 1, 1, 0, 0
    • (c) 1, 2, 0, 2, 0 → 2, 1, 1, 0, 0
    • (d) 2, 2, 1, 0, 0 → 1, 2, 0, 0, 2
    • (ab) 2, 1, 0, 2, 0 → 1, 1, 1, 0, 0
    • (e) 1, 1, 1, 0, 0 → 1, 1, 0, 2, 0