Ask Question
30 June, 00:51

What is the net redox reaction that occurs when Au comes into contact with acidic KMnO4? (Use the lowest possible coefficients. Omit states-of-matter from your answer.)

+5
Answers (1)
  1. 30 June, 04:43
    0
    3MnO₄⁻ + 24H⁺ + 5Au → 5Au³⁺ + 3Mn²⁺ + 12H₂O.

    Explanation:

    KMnO₄ is strong oxidizing agent which is reduced and oxidizes Au according to the two-half reactions:

    The oxidation reaction: Au → Au³⁺ + 3e.

    The reduction reaction: MnO₄⁻ + 8H⁺ + 5e → Mn²⁺ + 4H₂O.

    To obtain the net redox reaction, we multiply the oxidation reaction by 5 and the reduction reaction by 5 to equalize the no. of electrons in the two-half reactions.

    So, the net redox reaction will be:

    3MnO₄⁻ + 24H⁺ + 5Au → 5Au³⁺ + 3Mn²⁺ + 12H₂O.
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “What is the net redox reaction that occurs when Au comes into contact with acidic KMnO4? (Use the lowest possible coefficients. Omit ...” in 📙 Chemistry if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers