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How many moles of 2-butanol are oxidised by 1 mole of dichromate?
Wiki User
∙ 10y ago
1 mole of dichromate releases 3 moles of atomic oxygen during oxidation process so it may oxidize 3 moles of butanol.
Added:
The answer (three moles butanon) is correct, but not the explanation.
This oxidation has nothing to do with 'oxygen atoms', instead CrVI (in bichromate) taking up 3 electrons to form CrIII cations.
Secundairy alcohols, like 2-butanol, are only oxidised till a keton is formed (butanon), according to:
3 (CH3)CHOH(C2H5) + Cr2O72- + 8 H+ --> 3 (CH3)CO(C2H5) + 2 Cr3+ + 7 H2O
Please note there is NO change in the number of 'oxygen atoms' in the 2-butanol changing to butanon.
Wiki User
∙ 10y ago
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