When the rate for the reaction2 NO + O22 NO2was studied, the rate was found to double when the O, concentration was doubled whilethe NO concentration was unchanged. It was also found that the rate quadruples whenthe NO concentration is doubled while the Oz concentration is unchanged.a. What is the rate law expression for this reaction? Place this answer clearly labeledwithin the answer box in the quiz.Two mechanisms were proposed for this reaction as shown below.PROPOSAL IStep 1:NO + O2NO3(fast)Step 2:NO + NO:NO, + NO: (slow, RDS)PROPOSAL IIStep 1Step 2Step 3NO + NONO2O2 +N204NO2(slow, RDS)(fast)NO2 (fast)N20,NO2 +b. Write a predicted rate law for each proposed mechanism. In your predicted rate law,make sure no intermediates are present in the overall expression. Show your work or nocredit will be awarded. Show your answer for this question on the scratch paper clearlylabeled.c. Which proposed mechanism I or II agrees with the rate law expression that youdetermined above? You must also explain your reasoning or no credit will be qiven. Placeyour answer on the scratch paper clearly labeled.

The given equation for which the rate law to be determined is: 2NO + O2 -----> 2NO2

Answered: When the rate for the reaction 2 NO +…

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter11: Chemical Kinetics: Rates Of Reactions

Section11.2: Effect Of Concentration On Reaction Rate

Problem 11.3PSP

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You and a coworker have developed a molecule thathas shown potential as cobra antivenin (AV). This antivenin works by binding to the venom (V), thereby rendering it nontoxic. This reaction can be described by the rate law Rate=k[AV]1[V]1 You have been given the following data from your coworker: [V]0=0.20M[AV]0=1.0104M A plot of ln[AV] versus t(s) gives a straight line with a slope of 0.32 s1. What is the value of the rate constant (k) for this reaction?
From the given data, use a graphical method to determine the order and rate constant of the following reaction: 2XY+Z Time (s) 5.0 10.0 15.0 20.0 25.0 30.0 35.0 40.0 [X](M) 0.0990 0.0497 0.0332 0.0249 0.0200 0.0166 0.0143 0.0125
Use the data provided to graphically determine the order and rate constant of the following reaction: SO2CI2SO2+CI2 Time(s) 0 5.00103 1.00104 1.50104 [SO2CI2] (M) 0.100 0.0896 0.0802 0.0719 Time(s) 2.50104 3.00104 4.00104 [SO2CI2] (M) 0.0577 0.0517 0.0415
The reaction of compound A to give compounds C and D was found to be second-order in A . The rate constant for the reaction was determined to be 2.42 L/mol/s. If the initial concentration is 0.500 mol/L, what is the value of t1/2?
Alcohol is removed from the bloodstream by a series of metabolic reactions. The first reaction produces acetaldehyde; then other products are formed. The following data have been determined for the rate at which alcohol is removed from the blood of an average male, although individual rates can vary by 2530%. Women metabolize alcohol a little more slowly than men: [C2H5OH](M) 4.4102 3.3102 2.2102 Rate(moI/L/h) 2.0102 2.0102 2.0102 Determine the rate equation, the rate constant, and the overall order for this reaction.
For the past 10 years, the unsaturated hydrocarbon 1, 3-butadiene (CH2 = CH - CH = CH2) has ranked 38th among the top 50 industrial Chemicals. It is used primarily for the manufacture of synthetic rubber. An isomer exists also as cyclobutene: The isomerization of cyclobutene to butadiene is first-order and the rate constant has been measured as 2.0104s1 at 150 C in a 0.53-L ?ask. Determine the partial pressure of cyclobutene and its concentration after 30.0 minutes if an isomerization reaction is carried out at 150 C with an initial pressure of 55 torr.
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The reaction of NO2(g) and CO(g) is thought to occur in two steps to give NO and CO2: Step 1: Slow NO2(g) + NO2(g) NO(g) + NO3(g) Step 2: Fast NO3(g) + CO(g) NO2(g) + CO2(g) (a) Show that the elementary steps add up to give the overall, stoichiometric equation. (b) What is the molecularity of each step? (c) For this mechanism to be consistent with kinetic data, what must be the experimental rate equation? (d) Identify any intermediates in tins reaction.
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The decomposition of azomethane, (CH3)2N2, to nitrogen and ethane gases is a first-order reaction, (CH3)2N2(g)N2(g)+C2H6(g). At a certain temperature, a 29-mg sample of azomethane is reduced to 12 mg in 1.4 s. (a) What is the rate constant k for the decomposition at that temperature? (b) What is the half-life of the decomposition? (c) How long will it take to decompose 78% of the azomethane?
The following data were obtained for the gas-phase decomposition of dinitrogen pentoxide, 2N2O5(g)4NO2(g)+O2(g) [N2O5]0(mol/L) Initial Rate (mol/L s) 0.0750 8.90 104 0.190 2.26 103 0.275 3.26 103 0.410 4.85 103 Defining the rate as [N2O5]/ t write the rate law and calculate the value of the rate constant

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