Acetone is brominated in acidic solution according to the following reaction: CH3COCH3(aq) + Br2(aq) — Kinetics Chemistry Question
Question
Acetone is brominated in acidic solution according to the following reaction:
CH3COCH3(aq) + Br2(aq) → CH3COCH2Br(aq) + H+(aq) + Br–(aq)
What is the rate law implied by the mechanism given below?
CH3COCH3(aq) + H+(aq) ⇌ CH3C(OH)CH3+(aq) fast, reversible
CH3C(OH)CH3+(aq) → CH3C(OH)=CH2(aq) + H+(aq) slow
CH3C(OH)=CH2(aq) + Br2(aq) → CH3C(OH)CH2Br+(aq) + Br–(aq) fast
CH3C(OH)CH2Br+(aq) → CH3COCH2Br(aq) + H+(aq) fast
A.✓ Correct
Rate = k[CH3COCH3][H+]
B.
Rate = k[CH3COCH3]
C.
Rate = k[CH3COCH3][Br2]
D.
Rate = k[CH3COCH3][Br2]/[H+]
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