Using oxidation and reduction half-reactions, balance the skeletal equation cl2o7 (g) + h2o2 (aq) → clo - 2 (aq) + o2 (g) of the production of chlorite ions from dichlorine heptoxide. the reaction takes place in a basic solution. what is the smallest possible integer coefficient of o2 in the combined balanced equation?

Question

Chemistry

Lawrence Martin

25 July, 12:33

Using oxidation and reduction half-reactions, balance the skeletal equation cl2o7 (g) + h2o2 (aq) → clo - 2 (aq) + o2 (g) of the production of chlorite ions from dichlorine heptoxide. the reaction takes place in a basic solution. what is the smallest possible integer coefficient of o2 in the combined balanced equation?

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Aniyah Fernandez · Answer 1

Unbalanced chemical reaction: H₂O₂ (aq) + Cl₂O₇ (aq) → ClO₂⁻ (aq) + O₂ (g).

Reduction half reaction: 6H⁺ + Cl₂O₇ → 2ClO₂⁻ + 3H₂O.

Oxidation half reaction: H₂O₂ → O₂ + 2H⁺ + 2e⁻ / * 4; 4H₂O₂ → 4O₂ + 8H⁺ + 2e⁻

Sum: 6H⁺ + Cl₂O₇ + 4H₂O₂ → 4O₂ + 8H⁺ + 2ClO₂⁻ + 3H₂O;

Cl₂O₇ + 4H₂O₂ → 4O₂ + 2H⁺ + 2ClO₂⁻ + 3H₂O

Add 2 OH⁻: 2OH⁻ + Cl₂O₇ + 4H₂O₂ + → 4O₂ + 2ClO₂⁻ + 5H₂O.

Balanced chemical reaction: 4H₂O₂ + Cl₂O₇ + 2OH⁻→ 2ClO₂⁻ + 4O₂ + 5H₂O.

The smallest possible integer coefficient of O ₂ is 2.