consider the aqueous reaction of Cl2 + H2S -> S + 2HCL . It may happen...
consider the aqueous reaction of Cl2 + H2S -> S + 2HCL . It may happen by the following mechanism
1: Cl2-> <- 2Cl fast
2: Cl+H2S -> <- HCl + HS fast
3: HS +Cl --> --< HCl + S slow
DERIVE a rate law for overall reaction using the given mechanism and rate determining step without using intermediates in the rate law.
Homework Answers
Solution:
For the given reaction,
There are two transient species (HS and Cl). Therefore rate expession is calculated by using steady state approximation (ssa).
Suppose rate constants for the given three steps are k1,k2 and k3 respectively.
Add Answer to:
consider the aqueous reaction of Cl2 + H2S
-> S + 2HCL . It may happen...
1. Consider the reaction, Cl2 + H2S => 2 HCl + S, which is found to...
1. Consider the reaction, Cl2 + H2S => 2 HCl + S, which is found to be half order in Cl2 and first order in hydrogen sulfide. Which step of the proposed mechanism must be slow in order to agree with this rate law? Cl2 => 2 Cl Cl + H2S => HCl + HS Cl + HS => HCl + S 2. Consider the reaction, H2 + I2 => 2 HI , which is found to be first order...
The proposed mechanism for a reaction is Cl2 => Cl+ + Cl- Slow Cl- + H2S...
The proposed mechanism for a reaction is Cl2 => Cl+ + Cl- Slow Cl- + H2S => HCl + HS- Fast Cl+ + HS- => HCl + S Fast Which of the following would be a rate law for the reaction? A. rate = k[Cl2] B. rate = k[Cl2][H2S] C. rate = k[Cl2]1/2[H2S] D. rate = k[Cl-][H2S] E. rate = [Cl+][Cl-]
Consider the following mechanism: H2S <--> H+ + HS- (fast equilibrium) Cl2 + HS --> 2Cl- + H+ + S (slow) An intermediate is And the best rate law is
Consider the following mechanism: H2S <--> H+ + HS- (fast equilibrium) Cl2 + HS --> 2Cl- + H+ + S (slow) An intermediate is And the best rate law is
1. The rate of formation of carbon tetrachloride from chloroform, CHCl3(g) + Cl2(g) => CCl4(g) +...
1. The rate of formation of carbon tetrachloride from chloroform, CHCl3(g) + Cl2(g) => CCl4(g) + HCl(g) is first order in CHCl3 and half order in Cl2. Which step of the proposed mechanism must be slow in order to agree with this rate law? 1. Cl2(g) => 2 Cl(g) 2. Cl(g) + CHCl3(g) => HCl(g) + CCl3(g) 3. CCl3(g) + Cl(g) => CCl4(g) 1. 1 2. 2 3. 3 2. The proposed mechanism for a reaction is Cl2 =>...
Consider the following three step mechanism for a reaction Cl2 > 2Cl Fast Cl+CHCl3 > HCl+CCl3...
Consider the following three step mechanism for a reaction Cl2 > 2Cl Fast Cl+CHCl3 > HCl+CCl3 Slow Cl+CCl3 > CCl4 Fast What is the predicted rate law? How do you do it? The answer is rate=K[Cl2]^.5 [CHCl3]
5. Consider this 2-step mechanism for a reaction. NO2(g) + Cl2(g) k1 ClNO2 (g) + Cl(g)...
5. Consider this 2-step mechanism for a reaction. NO2(g) + Cl2(g) k1 ClNO2 (g) + Cl(g) Slow NO2(g) + Cl(g) k2 ClNO2(g) Fast a. What is the overall reaction? b. Identify the intermediates in the mechanism. c. What is the predicted rate law?
The following mechanism has been proposed for the gas-phase reaction of chloroform (CHCl3) and chlorine. Cl2...
The following mechanism has been proposed for the gas-phase reaction of chloroform (CHCl3) and chlorine. Cl2 ⇌ 2Cl (fast, reversible) Cl + CHCl3 → HCl + CCl3 (slow) Cl + CCl3 → CCl4 (fast) What rate law does this mechanism predict? (Choose from the list below and enter your answers in alphabetical order, e.g. ABC ). A)k G) [CHCl3]1/2 M) [CCl3]2 B) [Cl2] H) [CCl3]1/2 N) [HCl]2 C) [Cl] I) [HCl]1/2 O) [Cl2]2 D) [CHCl3] J) [Cl2]1/2 P) [Cl]2 E)...
2. Consider this two step mechanism for a reaction… Step 1 NO2 + O3 --> NO3 ...
2. Consider this two step mechanism for a reaction… Step 1 NO2 + O3 --> NO3 + O2 slow; rate determining step Step 2 NO3 + NO2 --> N2O5 fast a. What is the overall reaction? b. Identify the intermediates in the mechanism. c. Write the rate law expression for each step of the mechanism including any reversible reactions. c. What is the predicted rate law expression? Be sure to only list reactants from the overall equation and not intermediates...
Consider the following two-step mechanism for a reaction: NO2(g)+Cl2(g)→ClNO2(g)+Cl(g)Slow N O 2 ( g ) +...
Consider the following two-step mechanism for a reaction: NO2(g)+Cl2(g)→ClNO2(g)+Cl(g)Slow N O 2 ( g ) + C l 2 ( g ) → C l N O 2 ( g ) + C l ( g ) S l o w NO2(g)+Cl(g)→ClNO2(g)Fast a)What is the overall reaction? Express your answer as a chemical equation. Identify all of the phases in your answer. b)Identify the intermediates in the mechanism. Check all that apply. Check all that apply. NO2(g), ClNO2(g), Cl2(g) ,Cl(g)...
A compare? rate Coastant at 1.000 x 10k, and 2. The reaction CO(g) + Cl2 →...
A compare? rate Coastant at 1.000 x 10k, and 2. The reaction CO(g) + Cl2 → COCl2(g) Has the reaction mechanism Cl + CO=COCI fast Cl2 + COCl → COC12 + Cl slow a. List the intermediates in the reaction mechanism. b. The order of the overall reaction is 5/2. Determine the rate law for the reaction. (Many steps are required)
A compare? rate Coastant at 1.000 x 10k, and 2. The reaction CO(g) + Cl2 → COCl2(g) Has the reaction mechanism Cl + CO=COCI fast Cl2 + COCl → COC12 + Cl slow a. List the intermediates in the reaction mechanism. b. The order of the overall reaction is 5/2. Determine the rate law for the reaction. (Many steps are required)
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 11 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 11 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 11 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 11 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 11 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 11 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 11 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 11 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 11 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 11 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 11 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 11 months ago