22.2a The rate of formation of C in the reaction 2 A+B2C+3D is1.0 mol dm s. State the reaction rate, and the rates of formation orconsumption of A, B, and D.22.2b The rate of consumption of B in the reaction A+3 B-C+2Dis1.0 mol dms. State the reaction rate, and the rates of formation orconsumption of A, C, and D.

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Answered: 22.2a The rate of formation of C in the…

22.2a The rate of formation of C in the reaction 2 A+B 2C+3D is 1.0 mol dm s. State the reaction rate, and the rates of formation or consumption of A, B, and D.

Chemistry: An Atoms First Approach

2nd Edition

ISBN:9781305079243

Author:Steven S. Zumdahl, Susan A. Zumdahl

Publisher:Steven S. Zumdahl, Susan A. Zumdahl

Chapter11: Chemical Kinetics

Section: Chapter Questions

Problem 74E

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The oxidation of iodide ion by the hypochlorite ion in the presence of hydroxide ions I(aq) + ClO(aq) IO(aq) + Cl(aq) was studied at 25 C, and the following initial rates data (Y. Chia and R. E. Connick, Journal of Physical Chemistry, Vol. 63, p. 1518, 1959) were collected: (a) Determine the rate law for this reaction. (b) One mechanism that has been proposed for this reaction is the following: Show that the rate law predicted by this mechanism matches the experimentally determined rate law in part a. (Note that when writing the expression for K the equilibrium constant, [H2O] is not involved. See Chapter 15.)
The label on a bottle of 3% (by volume) hydrogen peroxide, H2O2, purchased at a grocery store, states that the solution should be stored in a cool, dark place. H2O2decomposes slowly over time, and the rate of decomposition increases with an increase in temperature and in the presence of light. However, the rate of decomposition increases dramatically if a small amount of powdered MnO- is added to the solution. The decomposition products are H2O and O2. MnO2 is not consumed in the reaction. Write the equation for the decomposition of H2O2. What role does MnO2 play? In the chemistry lab, a student substituted a chunk of MnO2 for the powdered compound. The reaction rate was not appreciably increased. WTiat is one possible explanation for this observation? Is MnO2 part of the stoichiometry of the decomposition of H2O2?
What is the difference between order of reaction and molecularity ?
22.1a The rate of the reaction A+2 B 3C+D was reported as 1.0 mol dms.State the rates of formation and consumption of the participants. 22.1b The rate of the reaction A+3B C+2D was reported as 1.0 mol dms. State the rates of formation and consumption of the participants.
The addition of NO accelerates the decomposition ofN2O, possibly by the following mechanism:NO(g) + N2O(g)--->N2(g) + NO2(g)2 NO2(g)--->2 NO(g) + O2(g)(a) What is the chemical equation for the overall reaction?Show how the two steps can be added to give theoverall equation. (b) Is NO serving as a catalyst or an intermediatein this reaction? (c) If experiments show thatduring the decomposition of N2O, NO2 does not accumulatein measurable quantities, does this rule out the proposedmechanism?
The rate of consumption of B in the reaction A+3 B→C+2 Dis 2.7moldm−3 s−1. State the reaction rate, and the rates of formation orconsumption of A, C, and D
4. Which of the following statements is incorrect? (A) The rate of a homogeneous reaction is a function of all temperature, pressure and composition. (B) Arrhenius equation shows the variation of rate constant with temperature. (C) Molecularity of a reaction can have a fractional value. (D) If 'n' is the order of reaction, then unit of rate constant is 1/(time)/(concentration)n-1. 5. A molecule have reacted or disappeared when through this method by changing its configuration. (A) Combination(C) Isomerization (B) Decomposition (D) Isolation 6. Rate constant “k” and absolute temperature “T” are related for transition theory as (A) kαTe(-E/RT) (C) kαT2e(-E/RT) (B) kαT0.5e(-E/RT) (D) kαT2.5e(-E/RT) Please answer all!
The rate of the following reaction in aqueous solution is monitored by measuring the number of moles of Hg2Cl that precipitate per liter per minute. The data obtained are listed in the table. Determine the (a) rate law and (b) rate constant (use the data for Experiment 3) 2 HgCI₂(aq) + C₂O₄-(aq) --> 2CI-(aq) + 2CO₂(g) + Hg₂Cl₂(s) Experiment 1 2 3 [H gC12](M) 0.204 0.204 0.408 [C204](M) 0.091 0.180 0.180 Initial Rate (M/s) 1.1 x 10^-4 2.2 * 10^-4 4.4 * 10^-4
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22.2b The rate of consumption of B in the reaction A + 3 B → C + 2 D is 1.0 mol dm−3 s −1 . State the reaction rate, and the rates of formation or consumption of A, C, and D.
1. Which of the following statements is incorrect? (A) The reaction in which the rate equation corresponds to a stoichiometric equation is called an elementary reaction. (B) Molecularity of a reaction may not be equal to the order of reaction. (C) With increase in temperature, the rate constant obeying Arrhenius equation decreases. (D) Rate of a chemical reaction is independent of the concentration of the reactants for a zero order reaction. 2. The rate of a gas phase reaction is given by, kCACB. If the volume of the reaction vessel is reduced to l/3rd of its initial volume, then the reaction rate compared to the original rate will be _____ times. (A) 3 (C) 6 (B) 9 (D) 12 3. A given number of molecules (i.e., moles) of a particular chemical species have reacted or disappeared when any of the following occurs except (A) Combination (C) Isomerization (B) Decomposition (D) Isolation Please Answer all!

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