The following mechanism is proposed for a reaction. P + Q → A (fast) A +...
- The following mechanism is
proposed for a reaction.
P + Q → A (fast)
A + 2 Q → X + Y (slow)
X → Z v. (fast)- What would happen to the rate as the concentration of Q was increased?
- Write the net reaction.
- What is the RDS? Why?
- Why might step 2 be slower?
- What is/are the reaction intermediate(s)?
- Write an analogy for a mechanism and the rate determining step.
Homework Answers
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The following mechanism is
proposed for a reaction.
P + Q → A (fast)
A +...
1. The following mechanism has been proposed for the pas-phase reaction of chloroform and chlorine Ch> 20 (fast)...
1. The following mechanism has been proposed for the pas-phase reaction of chloroform and chlorine Ch> 20 (fast) CI + CHCI, - HCI +CCI, (slow) Cl + CCI - CCI (fast) a) Identify any intermediate(s): b) Identify any catalyst(s): b) Write the balanced equation for the overall reaction: c) Molecularity of each step: step 1. step 2. step 3 d) rds (circle): 1 2 3 d) What is the observable rate law predicted by this mechanism? e) What is the...
A proposed mechanism for a reaction is as follows: NO2(g) + NO2(g) + N204(8) Fast/Equilibrium Step...
A proposed mechanism for a reaction is as follows: NO2(g) + NO2(g) + N204(8) Fast/Equilibrium Step N2048) -> NO(g) + NO3(g) Slow NO3(g) NO) + O2(g) Fast The target rate law is rate = k (NO2)2 The target reaction is 2NO2(e) 2NON + O2) A. Write the rate law expected for this mechanism: B. What is the rate-determining step? C. What is the overall balanced equation for this mechanism? D. If there is/are a reactive intermediate(s), which is/are they? E....
For a reaction that proceeds by the following two-step mechanism A2 ⇄ 2A (fast) A +...
For a reaction that proceeds by the following two-step mechanism A2 ⇄ 2A (fast) A + B → C (slow) Which of the following statements is/are correct? 1) The reaction is first order in the concentration of A2. 2) B is a reaction intermediate. 3) The rate-determining step is bimolecular. 4) The units of the specific rate constant are mol1/2L-1/2s-1
The proposed mechanism for a reaction is 1. A(g) + B(g) <=> X(g) Fast 2. X(g)...
The proposed mechanism for a reaction is 1. A(g) + B(g) <=> X(g) Fast 2. X(g) + C(g) <=> Y(g) Fast 3. Y(g) => D(g) Slow What would be the rate law for the reaction?
4. Below is a proposed mechanism for a reaction: Step 1. Step 2. C+E-F Step 3....
4. Below is a proposed mechanism for a reaction: Step 1. Step 2. C+E-F Step 3. F G A B C+D Fast equilibrium Slow Fast A. (2 points) What is the overall stoichiometry for this reaction? B. (2 points) Which step is the rate determining step? C. (6 points) If this mechanism is correct, what should the rate equation for this reaction be? (Make sure you include the fast equilibrium)
A student proposed the following mechanism for the gas phase reaction of fluorine with chlorine dioxide....
A student proposed the following mechanism for the gas phase reaction of fluorine with chlorine dioxide. step 1 fast: 2 CIO, 2 C104 step 2 slow: C1204 +F2 ——2 FCIO2 (1) What is the equation for the overall reaction? Use the smallest integer coefficients possible. If a box is not needed, leave it blank. 20102 + F2 - 2FC10, + (2) Enter the formula of any species that acts as a reaction intermediate? If none leave box blank: (3) Complete...
The following mechanism has been proposed for the reaction between nitrogen monoxide and oxygen in the...
The following mechanism has been proposed for the reaction
between nitrogen monoxide and oxygen in the gas phase.
.....step
1.....fast:......2
NO --->
N2O2
.....step
2.....slow:....N2O2
+ O2 ----> 2
NO2
(1) What is the equation for the overall reaction?
Use the smallest integer coefficients possible. If a box is not
needed, leave it blank.
_______ +
________
_________ + ________
(2)
Enter the formula of any species
that acts as a reaction intermediate? If none leave box...
The following mechanism has been proposed for the gas phase reaction of nitrogen monoxide with bromine....
The following mechanism has been proposed for the gas phase reaction of nitrogen monoxide with bromine. .....step 1.....fast:......NO + Br2 <==> NOBr2 .....step 2.....slow:....NOBr2 + NO -->2 NOBr (1) What is the equation for the overall reaction? Use the smallest integer coefficients possible. If a box is not needed, leave it blank. _____ + ______ ----> __________ (2) Enter the formula of any species that acts as a reaction intermediate? If none leave box blank: __________ (3) Complete the rate law...
1. A proposed mechanism for a reaction is: 1221 (rapid equilibrium) I + H2 = H2...
1. A proposed mechanism for a reaction is: 1221 (rapid equilibrium) I + H2 = H2 (rapid equilibrium) H21 + 1 = 2 HI (slow) a. Write the overall balanced equation for this reaction. (4 pts.) b. Indicate which step is the rate determining step. (1 pt.) c. Based on the mechanism proposed, write the rate law for the overall reaction. (2 pts.) d. Using ki, ki, ka, etc., write the value for the overall rate constant k. (2 pts.)...
A student proposed the following mechanism for the gas phase reaction of fluorine with chlorine dioxide....
A student proposed the following mechanism for the gas phase reaction of fluorine with chlorine dioxide. step 1 fast: 2C10, C1,04 step 2 slow: Cl,04 + F2 — 2 FCIO2 (1) What is the equation for the overall reaction? Use the smallest integer coefficients possible. If a box is not needed, leave it blank. (2) Enter the formula of any species that acts as a reaction intermediate? If none leave box blank: (3) Complete the rate law for the overall...
1. The following mechanism has been proposed for the pas-phase reaction of chloroform and chlorine Ch> 20 (fast) CI + CHCI, - HCI +CCI, (slow) Cl + CCI - CCI (fast) a) Identify any intermediate(s): b) Identify any catalyst(s): b) Write the balanced equation for the overall reaction: c) Molecularity of each step: step 1. step 2. step 3 d) rds (circle): 1 2 3 d) What is the observable rate law predicted by this mechanism? e) What is the...
A proposed mechanism for a reaction is as follows: NO2(g) + NO2(g) + N204(8) Fast/Equilibrium Step N2048) -> NO(g) + NO3(g) Slow NO3(g) NO) + O2(g) Fast The target rate law is rate = k (NO2)2 The target reaction is 2NO2(e) 2NON + O2) A. Write the rate law expected for this mechanism: B. What is the rate-determining step? C. What is the overall balanced equation for this mechanism? D. If there is/are a reactive intermediate(s), which is/are they? E....
4. Below is a proposed mechanism for a reaction: Step 1. Step 2. C+E-F Step 3. F G A B C+D Fast equilibrium Slow Fast A. (2 points) What is the overall stoichiometry for this reaction? B. (2 points) Which step is the rate determining step? C. (6 points) If this mechanism is correct, what should the rate equation for this reaction be? (Make sure you include the fast equilibrium)
A student proposed the following mechanism for the gas phase reaction of fluorine with chlorine dioxide. step 1 fast: 2 CIO, 2 C104 step 2 slow: C1204 +F2 ——2 FCIO2 (1) What is the equation for the overall reaction? Use the smallest integer coefficients possible. If a box is not needed, leave it blank. 20102 + F2 - 2FC10, + (2) Enter the formula of any species that acts as a reaction intermediate? If none leave box blank: (3) Complete...
1. A proposed mechanism for a reaction is: 1221 (rapid equilibrium) I + H2 = H2 (rapid equilibrium) H21 + 1 = 2 HI (slow) a. Write the overall balanced equation for this reaction. (4 pts.) b. Indicate which step is the rate determining step. (1 pt.) c. Based on the mechanism proposed, write the rate law for the overall reaction. (2 pts.) d. Using ki, ki, ka, etc., write the value for the overall rate constant k. (2 pts.)...
A student proposed the following mechanism for the gas phase reaction of fluorine with chlorine dioxide. step 1 fast: 2C10, C1,04 step 2 slow: Cl,04 + F2 — 2 FCIO2 (1) What is the equation for the overall reaction? Use the smallest integer coefficients possible. If a box is not needed, leave it blank. (2) Enter the formula of any species that acts as a reaction intermediate? If none leave box blank: (3) Complete the rate law for the overall...
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