Two people proposed mechanisms for this reaction. One proposed mechanism for the reaction is: CH3COCH3 +...
Two people proposed mechanisms for this reaction. One proposed mechanism for the reaction is: CH3COCH3 + Br2 CH3COCH2Br + H+ + Br- The other proposed mechanism for the reaction is: CH3COCH3 + H+ CH3COHCH2+ CH3COHCH2+ + Br2 CH3COCH2Br + HBr Based on the data collected in the above problem, which mechanism is supported as most likely correct? Explain your reasoning. Determine the limiting reagent for the above reaction(52) Determine the rate constant for the first reaction above.(52)
Homework Answers
Hey,
I don't know reaction 52.
so I can't say
But if it follows the reaction of acetone with bromine, then
limiting reagent is bromine.
Add Answer to:
Two people proposed mechanisms for this reaction. One proposed
mechanism for the reaction is: CH3COCH3 +...
Temperature, Question 7 (13 marks) Acetone is brominated in acidic solution according to the following reaction:...
Temperature, Question 7 (13 marks) Acetone is brominated in acidic solution according to the following reaction: CH3COCH3(aq) + Br2(aq) - CH3COCH_Br(aq) + H" (aq) + Br" (aq) Student A proposed the following four-step mechanism for the decomposition of Bra: CH3COCH3 + H + CH3C(OH)CH3 ki, ki CH,C(OH)CH3 -CH:C(OH)-CH2 + H+ ka, slow CH;C(OH)=CH2 + Br2 - CH3C(OH)CH2Br* + Br k3 CH:C(OH)CH2Br* - CH3COCH2Br + H+ k4 Deduce the rate law for the above reaction by assuming a pre-equilibrium (7 marks)...
please answer these questions Given the following complex reaction mechanism for the reaction H2(g) + Br2(g)...
please answer these
questions
Given the following complex reaction mechanism for the reaction H2(g) + Br2(g) → 2 HBr (g): Br2 → 2 Brº (rate constant ka) Br + H2 → HBr +H* (rate constant kb) Hø + Br2 → HBr + Br" (rate constant ke) H + HBr → H2 + Brº (rate constant kd) Br + Brº Br2 (rate constant ke) Which of the following is true? The rate constant for the termination step is ka. The steady-state...
Q3: Determine the rate of formation of HBr considering the mechanism of chain reaction: Initiation: Br2...
Q3: Determine the rate of formation of HBr considering the mechanism of chain reaction: Initiation: Br2 -R1→2Br Propagation: H-+ Br2-3→ HBr + Br. -K, Br2 Termination: 2Br
The table below shows the initial rate of reaction (by measuring the rate of loss of...
The table below shows the initial rate of reaction (by measuring the rate of loss of Br2) for the following reaction at several different initial concentrations of reactants at 25oC: CH3COCH3 + Br2 H+(above arrow) → CH3COCH2Br + HBr Experiment [CH3COCH3] / M [Br2] /M [H+] /M Rate of loss of Br2 (M/s) 1 0.25 0.050 0.050 6.3 x 10-5 2 0.25 0.100 0.050 6.3 x 10-5 3 0.25 0.050 0.100 1.3 x 10-4 4 0.40 0.050 0.200 4.0 x...
Please answer each part with work shown. Thank you. 6. The following three mechanisms have been proposed for a particular reaction. Mechanism II Mechanism III Mechanisml H2 +NO-H2O+N (slow) N +...
Please answer each part with work shown. Thank you.
6. The following three mechanisms have been proposed for a particular reaction. Mechanism II Mechanism III Mechanisml H2 +NO-H2O+N (slow) N +NON2+0 (fast) O+H2-> H2O (fast) 2 NO-N202 (fast equilibrium) H2-N202-H20+ N3O (slow) H2+N20-H2O+N2 (fast) H2 + 2 NO- H2O+N2O (slow) N20+ H2N2+ H2O (fast) a) What is the overall reaction that each proposed mechanism supports? b) Calculate the ΔΗ'm for the overall reaction. c) For each mechanism, draw an energy...
Bromination of (E)-Cinnamic Acid OChem Lab: Here are the two proposed mechanisms for the reaction. These are very rough...
Bromination of (E)-Cinnamic Acid OChem Lab: Here are the two
proposed mechanisms for the reaction. These are very rough sketches
which may have some errors, but they capture the general idea.
Which of the two mechanisms is more plausible for this experiment
and how do you know?
Produrt OH 202-2049 130 Mech dert Mech 2 TO H Br S n OH Padet 93.5-95 Br AN O Padia 202-269°C Br
Produrt OH 202-2049 130 Mech dert Mech 2 TO H Br...
For the following reaction give the detailed mechanism in terms of: electron flow energy diagram, put...
For the following reaction give the detailed mechanism in terms of: electron flow energy diagram, put both propagation step 1 and step 2 on the same diagram CH3--CH3 + Br2 ------> CH3CH2--Br + HBr This is what I have so far, and I think I'm correct. Im having trouble with the energy diagram. Initiation Br--Br ---> 2 Br . (dot symbolizes radical) Propagation (step 1) Br . + H--CH2--CH3 ---><---- Br-H + . CH2--CH3 Propagation (step 2) . CH2--CH3 +...
k1f M Br2 Br Br M kir (1) + k2,f BrH2 HBr H k2,r (2) + + ka,f HBr Br HBr2 (3) + + Experimentally measured rate expressi...
k1f M Br2 Br Br M kir (1) + k2,f BrH2 HBr H k2,r (2) + + ka,f HBr Br HBr2 (3) + + Experimentally measured rate expression for [HBr] given as below: d [HBr] Aexp [H2] [Br2]1/2 [HBr] 1+ A2expBr2 dt Consider the above elementary reactions mechanism proposed by Bodenstein to explain their experimental findings of the reaction rate of HBr. Reactions 1 and 2 are bi-directional (forward and reverse) while reaction 3 is uni-directional (forward only) as written....
The rate equation for the reaction 2NO(g) + Br_2(g) rightgarrow 2NOBr(g) was determined experimentally to be:...
The rate equation for the reaction 2NO(g) + Br_2(g) rightgarrow 2NOBr(g) was determined experimentally to be: Rate = k[NO]^2 [Br_2] Five possible mechanisms have been proposed (i)-(v). Determine the rate equation for each mechanism below and then decide with reasons, (based on the information given) which mechanism is the most likely. (i) 2NO (g) + Br_2 (g) rightarrow 2NOBr (g) (ii)NO (g) + Br_2 rightwardsharpoonoverleftwardsharpoon NOBr_2 (g) NOBr_2 (g) + NO (g) rightarrow 2NOBr (g) (iii) Br_2 rightwardsharpoonoverleftwardsharpoon Br +...
3. There are two possible substitution products fr products and a complete mechanism for their for...
3. There are two possible substitution products fr products and a complete mechanism for their for IUPAC system and circle the major product. Ustitution products from the reaction of 3,3-dimethyl-2-butanol with aq. HBr. Draw the mechanism for their formation, including all intermediates. Name both products based on the :OH MW: 102. Ts-gimo 4. Based on the reaction above, calculate the theoretical yield for the reaction based on 2.0 g of the 3,3-dimethyl-2- butanol and 5 mL of the 48% HBr....
Temperature, Question 7 (13 marks) Acetone is brominated in acidic solution according to the following reaction: CH3COCH3(aq) + Br2(aq) - CH3COCH_Br(aq) + H" (aq) + Br" (aq) Student A proposed the following four-step mechanism for the decomposition of Bra: CH3COCH3 + H + CH3C(OH)CH3 ki, ki CH,C(OH)CH3 -CH:C(OH)-CH2 + H+ ka, slow CH;C(OH)=CH2 + Br2 - CH3C(OH)CH2Br* + Br k3 CH:C(OH)CH2Br* - CH3COCH2Br + H+ k4 Deduce the rate law for the above reaction by assuming a pre-equilibrium (7 marks)...
please answer these
questions
Given the following complex reaction mechanism for the reaction H2(g) + Br2(g) → 2 HBr (g): Br2 → 2 Brº (rate constant ka) Br + H2 → HBr +H* (rate constant kb) Hø + Br2 → HBr + Br" (rate constant ke) H + HBr → H2 + Brº (rate constant kd) Br + Brº Br2 (rate constant ke) Which of the following is true? The rate constant for the termination step is ka. The steady-state...
Q3: Determine the rate of formation of HBr considering the mechanism of chain reaction: Initiation: Br2 -R1→2Br Propagation: H-+ Br2-3→ HBr + Br. -K, Br2 Termination: 2Br
Please answer each part with work shown. Thank you.
6. The following three mechanisms have been proposed for a particular reaction. Mechanism II Mechanism III Mechanisml H2 +NO-H2O+N (slow) N +NON2+0 (fast) O+H2-> H2O (fast) 2 NO-N202 (fast equilibrium) H2-N202-H20+ N3O (slow) H2+N20-H2O+N2 (fast) H2 + 2 NO- H2O+N2O (slow) N20+ H2N2+ H2O (fast) a) What is the overall reaction that each proposed mechanism supports? b) Calculate the ΔΗ'm for the overall reaction. c) For each mechanism, draw an energy...
Bromination of (E)-Cinnamic Acid OChem Lab: Here are the two
proposed mechanisms for the reaction. These are very rough sketches
which may have some errors, but they capture the general idea.
Which of the two mechanisms is more plausible for this experiment
and how do you know?
Produrt OH 202-2049 130 Mech dert Mech 2 TO H Br S n OH Padet 93.5-95 Br AN O Padia 202-269°C Br
Produrt OH 202-2049 130 Mech dert Mech 2 TO H Br...
k1f M Br2 Br Br M kir (1) + k2,f BrH2 HBr H k2,r (2) + + ka,f HBr Br HBr2 (3) + + Experimentally measured rate expression for [HBr] given as below: d [HBr] Aexp [H2] [Br2]1/2 [HBr] 1+ A2expBr2 dt Consider the above elementary reactions mechanism proposed by Bodenstein to explain their experimental findings of the reaction rate of HBr. Reactions 1 and 2 are bi-directional (forward and reverse) while reaction 3 is uni-directional (forward only) as written....
The rate equation for the reaction 2NO(g) + Br_2(g) rightgarrow 2NOBr(g) was determined experimentally to be: Rate = k[NO]^2 [Br_2] Five possible mechanisms have been proposed (i)-(v). Determine the rate equation for each mechanism below and then decide with reasons, (based on the information given) which mechanism is the most likely. (i) 2NO (g) + Br_2 (g) rightarrow 2NOBr (g) (ii)NO (g) + Br_2 rightwardsharpoonoverleftwardsharpoon NOBr_2 (g) NOBr_2 (g) + NO (g) rightarrow 2NOBr (g) (iii) Br_2 rightwardsharpoonoverleftwardsharpoon Br +...
3. There are two possible substitution products fr products and a complete mechanism for their for IUPAC system and circle the major product. Ustitution products from the reaction of 3,3-dimethyl-2-butanol with aq. HBr. Draw the mechanism for their formation, including all intermediates. Name both products based on the :OH MW: 102. Ts-gimo 4. Based on the reaction above, calculate the theoretical yield for the reaction based on 2.0 g of the 3,3-dimethyl-2- butanol and 5 mL of the 48% HBr....
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