redox balance. ascorbic acid + Fe^3+ (acidic)

redox balance. ascorbic acid + Fe^3+ (acidic)

산화-환원 반응 완성하기. ascorbic acid + Fe3+

Fe3+ + C6H8O6 or C6H8O6 + Fe3+

 

 

Iron in food, in the form of Fe^3+ reacts with ascorbic acid C6H8O6 (vitamin C), to form dehydroascrobic acid, C6H6O6.

Write an ionic half equation to show the conversion of the ascorbic acid to dehydroascorbic acid in aqueous solution.

 

2Fe^3+ + C6H8O6 → 2Fe^2+ + C6H6O6 + 2H^+

 

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▶ 산화-환원 반응 균형 맞추기 설명 (산성 조건)

http://ywpop.tistory.com/4264

 

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Vitamin C is an important regulator of iron uptake.

It reduces ferric Fe3+ to ferrous Fe2+ ions.

 

 

1. 반쪽 반응 나누기

산화: C6H8O6 → C6H6O6

환원: Fe^3+ → Fe^2+

 

 

2. 질량 균형 맞추기

산화: C6H8O6 → C6H6O6 + 2H^+

환원: Fe^3+ → Fe^2+

 

 

3. 전하 균형 맞추기

산화: C6H8O6 → C6H6O6 + 2H^+ + 2e^-

환원: Fe^3+ + e^- → Fe^2+

 

 

4. 주고받은(이동한) 전자 수 같도록

산화: C6H8O6 → C6H6O6 + 2H^+ + 2e^-

환원: 2Fe^3+ + 2e^- → 2Fe^2+

 

 

5. 반쪽 반응 더하기. 끝.

2Fe^3+ + C6H8O6 → 2Fe^2+ + C6H6O6 + 2H^+

 

 

[키워드] redox Fe^3+, redox C6H8O6, redox ascorbic acid