Print Calaiator Periodic Table Available From: Not S Due Date Points Possible 10

Question

Print Calaiator Periodic Table Available From: Not S Due Date Points Possible 100 Grade Category Home Question 6 of 13 Incorrec Incorredt Map dos 12/6/ Sapling Learninsg In a particular redax reaction, NO2 is oxdized to NOs and Fe3 Is reduced to Fe Complete and balance the equation for this reaction in acidic so ution. Phases are optional. Policies Homa You can check your answ You can view solutions w give up on any question You can keep trying to ar until you get it right or g You lose 5% of the point answer in your question attempt at that answer O eTextbook 0 Help With This Topic Web Help & Videos # Try AgainNext OTechnical Support and Ex- 0 preveus Give Up & View Souton Explanatlion

Explanation / Answer

N in NO2- has oxidation state of +3

N in NO3- has oxidation state of +5

So, N in NO2- is oxidised to NO3-

Fe in Fe+3 has oxidation state of +3

Fe in Fe+2 has oxidation state of +2

So, Fe in Fe+3 is reduced to Fe+2

Reduction half cell:

Fe+3 + 1e- --> Fe+2

Oxidation half cell:

NO2- --> NO3- + 2e-

Balance number of electrons to be same in both half reactions

Reduction half cell:

2 Fe+3 + 2e- --> 2 Fe+2

Oxidation half cell:

NO2- --> NO3- + 2e-

Lets combine both the reactions.

2 Fe+3 + NO2- --> 2 Fe+2 + NO3-

Balance Oxygen by adding water

2 Fe+3 + NO2- + H2O --> 2 Fe+2 + NO3-

Balance Hydrogen by adding H+

2 Fe+3 + NO2- + H2O --> 2 Fe+2 + NO3- + 2 H+

This is balanced chemical equation in acidic medium

Answer:

2 Fe3+ + NO2- + H2O --> 2 Fe2+ + NO3- + 2 H+

Related Questions

Navigate

• Browse (All)
• Browse P
• Subjects

---

---

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