blackmamba123
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Reaction rate homework help
Hey guys I just stumbled on this question. If you can help that would be great.
The following is a proposed mechanism for this reaction. One of the species has been left out and replaced with "?". Determine what that species is.
Step 1: OCl- + H2O β HOCl + OH- ( fast )
Step 2: I- + ? β IOH + Cl- ( slow )
Step 3: IOH + OH- βIO - + H2O ( fast )
- Which three species in the mechanism above are intermediates?
-Which species is the catalyst?
I thought that a catalyst would remain unchanged throughout the reaction and I am a little confused as if i am to consider these steps as one overall
reaction?
Thanks for any help
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DraconicAcid
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If you add up the three steps, you will get the overall reaction.
A catalyst will be unchanged, but only because it is consumed in one step, and regenerated in another. An intermediate is the reverse- generated in
one, consumed later.
Please remember: "Filtrate" is not a verb.
Write up your lab reports the way your instructor wants them, not the way your ex-instructor wants them.
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blackmamba123
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Could you explain what is meant by intermediates in a little more detail please
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DraconicAcid
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An intermediate is a species which is generated in one step of the reaction, and then consumed, so it does not appear in the overall reaction.
Please remember: "Filtrate" is not a verb.
Write up your lab reports the way your instructor wants them, not the way your ex-instructor wants them.
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billybob
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so i would suppose it would be HOCl, IOH, and IO-?
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DraconicAcid
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I'm not going to help you with that part, Grasshopper. You must find your own path.
Please remember: "Filtrate" is not a verb.
Write up your lab reports the way your instructor wants them, not the way your ex-instructor wants them.
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billybob
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It is the correct answer!
[Edited on 3-6-2015 by billybob]
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