The mechanism for the reaction 2 H2O2(aq) → 2 H2O(1) + O2(g) in thepresence of I (aq) is proposed to bestep 1: H2O2(aq) + I(aq) → H20(1) + Ol (aq) (k1, slow)step 2: H2O2(aq) + Ol (aq) → H20(1) + O2(g) + I"(aq) (k2, fast)Derive the rate law using steady state approximation.O rate =k3[H2O2]?rate = ki [H2O2][1-]rate =ki[H2O]+k2[O2]?rate =k3[O2]

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Answered: The mechanism for the reaction 2…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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8. The temperature dependence of the acid-catalyzed hydrolysis of penicillin is investigated, and the rate constant k is found to be 7.0x10+ s' at 22.2 °C and 2.5×10 s¹ at 38.0 °C. What is the activation energy of the hydrolysis reaction? a) 61.6 kJ/mol b) 54.4 kJ/mol c) 45.8 kJ/mol d) 50.7 kJ/mol calculate the solubility
Hypothetically, the reaction H2 + 2IC1→ I2+ 2HC1 is first order in [H2] and second order in [ICI]. Based on the first fast step given below and the fact that the second step is the slow step, propose a second-step mechanism, and show that it conforms to the experimentally determined reaction order. Assume that [I2] does not affect the reaction rate. H2 + 2ICI → I2 + 2HC1 Fast: 2ICI → I2 + 2Cl Slow:
The following reaction is first order in respect to CH3OH and first order in respect to HCl. With this in mind, what is the rate constant for the reaction? Be sure you choose the answer with the right units. CH3OH(aq) + HCL(aq) ----> CH3CL(aq) + H2O(i) Reaction CH3OH conc. HCl conc. Initial Rate (M/s) 1 0.100 M 0.100 M 1.1 x 10-2
Give a reaction rate for the provided mechanism and do not include the intermediates in the final equation. 1. For the spontaneous reaction in water: Re(HzO)z + 2 KCN →Re(CN)z2 + 2K*(aq) + 2 H2O The postulate mechanism is where all species are in aqueous phase k1 Re(H₂O)2 + CN- Re(H₂O)(CN) + H₂O equilibrium Re(H₂O)(CN) + CN-I2 Re(H₂O)(CN)2-² Re(H2O)(CN)2243 Re(CN)22 + H2O k2 slow fast
The proposed reaction mechanism is as follows:i. BrO3- (aq) + H+ (aq) = HBrO3 (aq) [Fast]ii. HBrO3 (aq) + H+ (aq) = H2BrO3+ (aq) [Medium]iii. H2BrO3+ (aq) + Br- (aq) = Br2O2 (aq) + H2O (ℓ) [Slow]iv. Br2O2 (aq) + 4H+(aq) + 4Br-(aq) = 3Br2 (ℓ) + H2O (ℓ) [Fast]Evaluate the validity of this proposed reaction. Justify your answer.
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8. Thallium (1) is oxidized by cerium (IV) as follows: TI+ + 2 Ce+ → T1³+ + 2Ce³+ The elementary steps are as follows: 1. Ce4+ + Mn²+ Ce³+ + Mn³+ 2. Ce4+ + Mn³+ Ce³+ + Mn4+ 3. TI+ + Mn4+ → T1³+ + Mn²+ a) Add all reactants and products and obtain the overall reaction. b) Identify the catalyst and intermediate. c) Determine which is the rate determining step if the rate law for the reaction is Rate = k(Ce4+][ Mn²+]
P17B.4 The data below apply to the reaction, (CH,),CBr(aq) + H,0(1) → (CH,),COH(aq) + HBr(aq). Identify the order of the reaction and calculate the rate constant and the molar concentration of (CH,),CBr remaining after 43.8h. t/h 3.15 6.20 10.00 18.30 30.80 [(CH,),CBr]/(10²mol dm³) 10.39 8.96 7.76 6.39 3.53 2.07
The rate of consumption of iodide, I-(aq), in the reaction:
For a drug to be effective in treating an illnens, its levels in the bloodstream must be maintained for a period of time. One way to measure the level of a drug in the body is to measure its rate of appearance in the urine. The rate of excretion of penicillin is first order, with a half-life of about 30. min. If a person receives an injecction of 21 mg of penicillin at t- 0, how much penicillin remains in the body after 3.0 hours? mg

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