Basic solution Potassium permanganate, KMnO4, is a powerful oxidizing agent. The

Question

Basic solution

Potassium permanganate, KMnO4, is a powerful oxidizing agent. The products of a given redox reaction with the permanganate ion depend on the reaction conditions used. In basic solution, the following equation represents the reaction of this ion with a solution containing sodium fluoride:

MnO4?(aq)+F?(aq)?MnO2(s)+F2(aq)

Since this reaction takes place in basic solution, H2O(l) and OH?(aq) will be shown in the reaction. Places for these species are indicated by the blanks in the following restatement of the equation:

MnO4?(aq)+F?(aq)+     ????MnO2(s)+F2(aq)+     ???

Part B

What are the coefficients of the reactants and products in the balanced equation above? Remember to include H2O(l) and OH?(aq) in the blanks where appropriate. Your answer should have six terms.

Enter the equation coefficients in order separated by commas (e.g., 2,2,1,4,4,3).

Explanation / Answer

The answer is: (2,6,4,2,3,8)

Oxidation: 2 F-(aq) => F2(aq) + 2 e-

Reduction: MnO4-(aq) + 2 H2O(l) + 3 e- => MnO2(s) + 4 OH-(aq)

Add 3 x Oxidation + 2 x Reduction and cancel electrons to get overall reaction:

2 MnO4-(aq) + 6 F-(aq) + 4 H2O(l) => 2 MnO2(s) + 3 F2(aq) + 8 OH-(aq)

Related Questions

Navigate

• Browse (All)
• Browse B
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.