What is the rate law for the reaction? secure ezto.mheducation.com/hm.tpx nts 64

Question

What is the rate law for the reaction? secure ezto.mheducation.com/hm.tpx nts 64a -cp79 Rate Law and Constant from Data 6 out of1 bromination of acetone is acid-catalyzed: CH3COCH3 + Br2 catalyst CH3COCH2 Br + H+ + Br- rate of disappearance of bromine was measured for several different concentrati tone, bromine, and H ions at a certain temperature: [CH3 COCH3] | Br2 | [H+] | Rate of Disappearance 1) 0.500 (2) 0.500 (3) 0.500 (4) 0.665 (5) 0.665 (M) (M) of Br2(M/s) 0.0500 0.0500 5.31 x 105 0.100 0.0500 5.31 x 10 0.0500 0.100 1.06 x 104 0.0500 0.200 3.19 x 104 0.0500 0.0500 7.06 x 10 -5 References

Explanation / Answer

order w.r.t H3CCOCH3 = x

   r1/r5 = (a1/a5)^x

   ((5.31*10^-5)/(7.06*10^-5)) = (0.5/0.665)^x

x = 1

order w.r.t Br2 = y

   r1/r2 = (a1/a2)^y

   ((5.31*10^-5)/(5.31*10^-5)) = (0.05/0.1)^y

y = 0

order w.r.t H+ = z

   r1/r3 = (a1/a3)^z

   ((5.31*10^-5)/(1.06*10^-4)) = (0.05/0.1)^z

z = 1

rate law, rate = K[H3CCOCH3][H+][Br2]^0

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