12 Answered Questions for the topic Redox

Redox Chemistry

04/15/22

Redox reaction - calculate number of electrons - Chemistry (10.18)
How many electrons are exchanged when the next redox reaction is balanced?O2 + H2O + Fe → Fe(OH)3the answer is 12.I came up with 3OH^- + Fe → Fe(OH)3 + 3e^-so 3 electrons at this point, I do not... more
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11/11/21

Question about Redox Balancing Rxn.
Balance the redox reaction.Indicate the reducing agent and the oxidizing agent for each reaction.Cr2O72- + U4+ → Cr3+ + UO22+ (acidic)
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11/11/21

Redox Balancing Rxn.
Balance the redox reaction. Indicate the reducing agent and the oxidizing agent for each reaction.V2+ + V(OH)4+ → VO2+ (basic)
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07/16/19

Difference between Lindlar and Rosenmund catalysts?
Is there any difference between the Lindlar and Rosenmund catalysts? I've checked around, and it seems the same compounds are used to make both. Is there a difference in their reactivities or are... more
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07/09/19

How many hydride ions are available in NaBH4?
Different sources have different answers. In the reduction of an aldehyde or ketone to an alcohol by Sodium Borohydride, how many moles of aldehyde are reduced by one mole of Sodium... more
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07/05/19

Why do BH3 and NaBH4 have different selectivities?
I've always known borane ($\\ce{BH3}$), as a reagent for alkene hydroboration. Recently in class we talked about its use in the reduction of carboxylic acids to alcohols as well. Now obviously... more
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06/24/19

Difference in the functioning of alkaline and acidified KMnO4?
What is the difference in the functioning of alkaline and acidified $\\ce{KMnO4}$ as a reagent in organic chemistry? E.g., in the oxidation of a primary alcohol to carboxylic acid, we use... more
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03/27/19

Why is KI oxidized by H2SO4, whereas NaBr isn't oxidised?
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03/27/19

Do L-sugars (enantiomers of natural sugars) have a sweet taste?
I'm wondering about how L-sugars taste. They are obviously not digestible by humans, but what do they taste like? If they are sweet, too, why isn't sucrose with the unnatural chirality used as a... more
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03/18/19

Why are optically active compounds abundant in nature?
Enantiomers have most physical properties exactly same, which makes them hard to seperate from one another. Due to large amounts of physical similarities and chemical similarities (when dealing... more
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Redox

12/10/18

Which of the following metals when reacting with 1.0 M Zn2+ at 25°C will produce the greatest voltage? Select one: A. Mg B. Pb C. Al D. Ag
Which of the following metals when reacting with 1.0 M Zn2+ at 25°C will produce the greatest voltage?Select one:A. MgB. PbC. AlD. Ag
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04/10/16

Redox titration question? Determine the molarity of a solution? PLEASE HELP!!
Q1. Iron is often used to standardize permanganate solutions. A 0.158 g sample of pure iron wire was dissolved in dilute sulfuric acid to form a solution of iron (II) sulfate. This was titrated... more
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