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252 solutions

Rate Law

Q. Phosphine, PH3(g), decomposes according to the equation4PH3(g) →P4(g) + 6H2(g) Time (min)        Ptotal (Torr) 0.00                  10040.0       ...

Solved • Mar 20, 2020

Rate Law

Q. Consider the reaction described by the following equation.C2H4Br2(aq) + 3I-(aq) → C2H4(g) + 2Br-(aq) + I3-(aq) The rate law israte = k[C2H4Br2][I-]...

Solved • Mar 17, 2020

Rate Law

Q. For the following rate lawrate=k[A]^xdetermine the value of x if(a) the rate doubles when [A] is doubled.x= __________(b) the rate quadruples when ...

Solved • Mar 13, 2020

Rate Law

Q. The reaction2H2(g) + 2NO(g) → 2H2O(g) + N2(g)is known to be first-order in H2 and second-order in NO at a particular temperature.What is the rate l...

Solved • Feb 17, 2020

Rate Law

Q. The following data were obtained for the hypothetical reaction 2A + B → products.[A]0 (M)[B]0 (M)Initial Rate (M/s)10.20.1520.20.22030.60.145What i...

Solved • Feb 17, 2020

Rate Law

Q. Given the reactionOCl–(aq) + I–(aq) → OI–(aq) + Cl–(aq)The rate law for this reaction is Rate =  . The overall reaction order and the order with re...

Solved • Feb 17, 2020

Rate Law

Q. Consider the reactionaA + bB + C → dD + eEThe rate law is known to beRate = k[A]q[B]r[C]sWhich of the following statements is incorrect?A) The expo...

Solved • Feb 17, 2020

Rate Law

Q. Consider the reaction CO + NO2 → CO2 + NOUse the initial rate data in the table below to calculate the rate-constant for the reaction.[CO], M      ...

Solved • Jan 24, 2020

Rate Law

Q. Which of the following statements regarding chemical kinetics is/are correct?I In an elementary chemical reaction, the order-dependences of reactan...

Solved • Jan 24, 2020

Rate Law

Q. For the reaction A + B → C , the following initial rates were measured.[A], M                    [B], M                    initial rate, M s-10.05 ...

Solved • Jan 23, 2020

Rate Law

Q. For the reaction P4O10(aq) + 6H2O(l) -> 4H3PO4(aq) the rate law isA. rate = k[P4O10][H2O]6B. rate = k[P4O10][H2O] C. rate = k[P4O10] D. rate = k...

Solved • Jan 23, 2020

Rate Law

Q. For the reaction A + B -> C at a fixed concentration of A and [B] at the start is 0.10 M, the initial rate was measured. Another reaction was do...

Solved • Jan 23, 2020

Rate Law

Q. The rate constant for a reaction is 0.100 M-1s-1. What is the overall reaction order?A. zero B. first C. second D. third E. not determined

Solved • Jan 23, 2020

Rate Law

Q. The initial rate for the oxidation of iron(II) by cerium(IV)Ce4+ + Fe2+   ------->  Ce3+ + Fe3+ Is measured at several different initial concent...

Solved • Jan 20, 2020

Rate Law

Q. The initial rate for the oxidation of iron(II) by cerium(IV)Ce4+ + Fe2+   ------->  Ce3+ + Fe3+ Is measured at several different initial concent...

Solved • Jan 20, 2020

Rate Law

Q. The initial rate for the oxidation of iron(II) by cerium(IV)Ce4+ + Fe2+   ------->  Ce3+ + Fe3+ Is measured at several different initial concent...

Solved • Jan 20, 2020

Rate Law

Q. The initial rate for the oxidation of iron(II) by cerium(IV)Ce4+ + Fe2+   ------->  Ce3+ + Fe3+ Is measured at several different initial concent...

Solved • Jan 20, 2020

Rate Law

Q. If the rate law for the reaction is first order in A and second order in B, 2A +3B → productsthen the rate law is rate = _________?a) k[A][B]b) k[A...

Solved • Jan 20, 2020

Rate Law

Q. A reaction was found to be third order in Nitrogen concentration. The rate of the reaction _____ if the [N2] is doubled, with everything else kept ...

Solved • Jan 20, 2020

Rate Law

Q. The following reaction is studied at 25 °C in benzene solution:CH3OH + (C6H5)3CCl → CH3OC(C6H5)3 + HCl   A                    BThe following experi...

Solved • Jan 6, 2020

Rate Law

Q. The following reaction is studied at 25 °C in benzene solution:CH3OH + (C6H5)3CCl → CH3OC(C6H5)3 + HCl   A                    BThe following experi...

Solved • Jan 6, 2020

Rate Law

Q. The following reaction is studied at 25 °C in benzene solution:CH3OH + (C6H5)3CCl → CH3OC(C6H5)3 + HCl   A                    BThe following experi...

Solved • Jan 6, 2020

Rate Law

Q. Iodine monochloride reacts with hydrogen according to the equation: 2 ICl(g) + H2(g) → I2(g) + 2 HCl(g). The rate data below have been obtained.Det...

Solved • Dec 20, 2019

Rate Law

Q. What are the units for the rate constant of a second-order reaction?A. Ms-1B. M-1s-1 C. M-2s-1D. s-1E. M-1s

Solved • Dec 20, 2019

Rate Law

Q. The reaction between NO and I2 is first order in NO and second order in I2. What change in rate will result when the initial concentrations of both...

Solved • Dec 20, 2019

Rate Law

Q. The following set of data was obtained by the method of initial rates for the reaction:BrO3-(aq) + 5 Br-(aq) + 6 H+(aq) → 3 Br2(aq) + 3 H2O(l).What...

Solved • Dec 19, 2019

Rate Law

Q. The initial rates of reaction for 2 NO(g) + Cl 2 (g) → 2 NOCl(g) are:  Experiment     Initial [NO], M             Initial [Cl2], M                 ...

Solved • Dec 19, 2019

Rate Law

Q. The following set of data was obtained by the method of initial rates for the reaction:2 HgCl2(aq) + C2O42-(aq) → 2 Cl-(aq) + 2 CO2(g) + Hg2Cl2(s)W...

Solved • Dec 19, 2019

Rate Law

Q. The reaction 4 A + C + H → D has the mechanism below. What is the rate law? 1) 2 A → B fast 2) 2 B → B 2 fast 3) B 2 + C → G slow 4) G + H → D fast 

Solved • Dec 19, 2019

Rate Law

Q. Which of the following would be a reasonable unit for the rate constant of a first order reaction?a. secb. L/mol•secc. 1/secd. mol/L•sece. mol2/L2•sec

Solved • Dec 16, 2019

Rate Law

Q. The proposed mechanism for a reaction isNO + O3 => NO3 + O      FastNO3 + O => NO2 + O2   SlowWhich of the following would be a rate law for ...

Solved • Dec 16, 2019

Rate Law

Q. Consider the reaction of A(g) + B(g) + C(g) => D(g) for which the following data were obtained:Experiment          Initial [A], mol/L         In...

Solved • Dec 16, 2019

Rate Law

Q. The rate law for a reaction is rate = k[A]2[B]. The units of the rate constant when the concentrations are measured in mol/L and the time in second...

Solved • Dec 12, 2019

Rate Law

Q. For the reaction, 4 A(g) + 3 B(g) → 4 C(g), the following data were obtained at constant temperature.Experiment          Initial [A], mol/L        ...

Solved • Dec 12, 2019

Rate Law

Q. The rate law for a reaction is rate = k[A]2[B]2. The units of the rate constant when the concentrations are measured in mol/L and the time in secon...

Solved • Dec 11, 2019

Rate Law

Q. In experiments on the reaction 2 ICl(g) + H2(g) → I2(g) + 2 HCl(g), the following initial rate data were obtained.  What is overall order of the re...

Solved • Dec 11, 2019

Rate Law

Q. The units of the rate constant for a third-order reaction are:a. 1/M3•sb. 1/M•sc. M2•sd. 1/M2•se. M-3•s

Solved • Nov 1, 2019

Rate Law

Q. Consider the following mechanism. Determine the rate law for the overall reaction (where the overall rate constant is represented as k).

Solved • Aug 5, 2019

Rate Law

Q. The decomposition of nitramide, O2NNH2, in water has the following chemical equation and rate law:O2NNH2(aq)→ N2O(g) + H2O(l)rate= [O2NNH2]/[H]A pr...

Solved • Jul 9, 2019

Rate Law

Q. The experimentally determined rate law for the reaction 2 NO(g) + 2 H2(g) → N2(g) + 2 H2O(g) is Rate = k[NO]2[H2].If the concentration of H2 is dou...

Solved • Dec 6, 2018

Rate Law

Q. The following kinetic data are collected for the initial rates of a reaction 2X + Z →products:Experiment  [X]0  (M)  [Z]0  (M)  Rate  (M/s) 10.250....

Solved • Dec 6, 2018

Rate Law

Q. The reaction 2NO2 → 2NO + O2 has the rate constant k = 0.63 M-1s-1.Based on the units for k, is the reaction first or second order in NO2?

Solved • Dec 6, 2018

Rate Law

Q. Cyclopentadiene (C5H6) reacts with itself to form dicyclopentadiene (C10H12). A 0.0400 M solution of C5H6 was monitored as a function of time as th...

Solved • Dec 6, 2018

Rate Law

Q. Cyclopentadiene (C5H6) reacts with itself to form dicyclopentadiene (C10H12). A 0.0400 M solution of C5H6 was monitored as a function of time as th...

Solved • Dec 6, 2018

Rate Law

Q. A reaction A + B obeys the following rate law: Rate = k [B]2.What are the units of the rate constant?

Solved • Dec 6, 2018

Rate Law

Q. A colored dye compound decomposes to give a colorless product. The original dye absorbs at 608 nm and has an extinction coefficient of 4.7 104 M-1 ...

Solved • Dec 6, 2018

Rate Law

Q. You perform a series of experiments for the reaction A → B + C and find that the rate law has the form rate = k[A]x. Determine the value of x in ea...

Solved • Dec 6, 2018

Rate Law

Q. The reaction 2NO(g) + O2 (g) → 2NO2 (g) is second order in NO and first order in O2. When [NO]= 4.1×10−2 M and [O2]= 3.6×10−2 M , the observed rate...

Solved • Dec 6, 2018

Rate Law

Q. The reaction 2NO(g) + O2 (g) → 2NO2 (g) is second order in NO and first order in O2. When [NO]= 4.1×10−2 M and [O2]= 3.6×10−2 M , the observed rate...

Solved • Dec 6, 2018

Rate Law

Q. The reaction 2NO(g) + O2 (g) → 2NO2 (g) is second order in NO and first order in O2. When [NO]= 4.1×10−2 M and [O2]= 3.6×10−2 M , the observed rate...

Solved • Dec 6, 2018

Rate Law

Q. Identify the rate law for the reaction involving C3H6:

Solved • Dec 6, 2018

Rate Law

Q. The gas-phase decomposition of NO2, NO2 (g) → 2 NO (g) + O2 (g), is studied at 383 oC, giving the following data:Time (s)[NO2] (M)0.00.1005.00.0171...

Solved • Dec 6, 2018

Rate Law

Q. BF3 (g) + NH3(g) F3BNH3 (g)For the above reaction, the following data were measured:Experiment [BF3]  (M)  [NH3]  (M) Initial Rate (M/s) 10.2500.25...

Solved • Dec 6, 2018

Rate Law

Q. BF3 (g) + NH3(g) F3BNH3 (g)For the above reaction, the following data were measured:Experiment [BF3]  (M)  [NH3]  (M) Initial Rate (M/s) 10.2500.25...

Solved • Dec 6, 2018

Rate Law

Q. Consider the following reaction:2NO(g) + 2H2(g) → N2 (g) + 2H2O(g)If the rate constant for this reaction at 1000 K is 6.0 x 104 M-2 s-1, what is th...

Solved • Dec 6, 2018

Rate Law

Q. Consider the gas-phase reaction between nitric oxide and bromine at 273 oC2NO(g) + Br2(g)  →  2NOBr(g).The following data for the initial rate of a...

Solved • Dec 6, 2018

Rate Law

Q. The decomposition of N2O5 in carbon tetrachloride proceeds as follows:2N2O5 → 4NO2 + O2The rate law is first order in N2O5. At 64 oC the rate const...

Solved • Dec 6, 2018

Rate Law

Q. A student says, “The initial concentration of a reactant was doubled, and the rate doubled. Therefore the reaction is second order in that reactant...

Solved • Dec 6, 2018

Rate Law

Q. Consider the following reaction: CHCl3(g) + Cl2(g) → CCl4(g) + HCl(g)The initial rate of the reaction is measured at several different concentratio...

Solved • Dec 6, 2018

Rate Law

Q. Consider the tabulated data showing the initial rate of a reaction (A → products) at several different concentrations of A.[A] (M)Initial Rate (M/s...

Solved • Dec 6, 2018

Rate Law

Q. Carbon monoxide and chlorine gas react to form phosgene (COCl2) according to the equation: CO(g) + Cl2(g) → COCl2(g). The rate law for the reaction...

Solved • Dec 6, 2018

Rate Law

Q. For the reaction 2A + B → C, the initial rate was measured at several different reactant concentrations. From the resulting tabulated data, determi...

Solved • Dec 6, 2018

Rate Law

Q. This reaction was experimentally determined to be first order with respect to O2 and second order with respect to NO: O2(g) +2 NO(g) → 2 NO2(g)The ...

Solved • Dec 6, 2018

Rate Law

Q. The graph below shows a plot of the rate of a reaction versus the concentration of the reactant A for the reaction A .What is the order of the r...

Solved • Dec 6, 2018

Rate Law

Q. The graph below shows a plot of the rate of a reaction versus the concentration of the reactant A for the reaction:A → products .Estimate the value...

Solved • Dec 6, 2018

Rate Law

Q. A reaction in which A → products was monitored as a function of time and the results are shown below. Time (s)  [A] (M) 01.000250.914500.829750.744...

Solved • Dec 6, 2018

Rate Law

Q. This plot shows the rate of the decomposition of SO2Cl2 into SO2 and Cl2 as a function of the concentration of SO2Cl2.What is the order of the reac...

Solved • Dec 6, 2018

Rate Law

Q. Consider the following reaction: 2O3(g) → 3O2(g). The rate law for this reaction is as follows: Rate = k[O3]2/[O2]Suppose that a 1.0-L reaction ves...

Solved • Dec 6, 2018

Rate Law

Q. At 700 K acetaldehyde decomposes in the gas phase to methane and carbon monoxide. The reaction is: CH3CHO(g) → CH4(g) + CO(g). A sample of CH3CHO i...

Solved • Dec 6, 2018

Rate Law

Q. At 400 K oxalic acid decomposes according to the reaction: H2C2O4(g) → CO2(g) + HCOOH(g). In three separate experiments, the initial pressure of ox...

Solved • Dec 6, 2018

Rate Law

Q. The following reaction was monitored as a function of time: A → B + C. A plot of ln[A] versus time yields a straight line with slope −4.4×10−3 /s. ...

Solved • Dec 6, 2018

Rate Law

Q. A reaction in which A, B, and C react to form products is first order in A, second order in B, and zero order in C.By what factor does the reaction...

Solved • Dec 6, 2018

Rate Law

Q. A reaction in which A, B, and C react to form products is first order in A, second order in B, and zero order in C.By what factor does the reaction...

Solved • Dec 6, 2018

Rate Law

Q. Consider the following data showing the initial rate of a reaction (A → products) at several different concentrations of A.What is the order of the...

Solved • Dec 6, 2018

Rate Law

Q. The data below were collected for the following reaction: 2NO2(g) + F2(g) → 2 NO2F(g) [NO2] (M)  [F2] (M)  Initial Rate (M/s) 0.1000.1000.0260.2000...

Solved • Dec 6, 2018

Rate Law

Q. The following reaction is first order in N2O5: N2O5(g) → NO3(g) + NO2(g). The rate constant for the reaction at a certain temperature is 0.053/s.Ca...

Solved • Dec 6, 2018

Rate Law

Q. The following reaction is first order in N2O5: N2O5(g) → NO3(g) + NO2(g). The rate constant for the reaction at a certain temperature is 0.053/s. W...

Solved • Dec 6, 2018

Rate Law

Q. The following reaction is first order in N2O5: N2O5(g) → NO3(g) + NO2(g). The rate constant for the reaction at a certain temperature is 0.053/s. W...

Solved • Dec 6, 2018

Rate Law

Q. The graph below shows a plot of the rate of a reaction versus the concentration of the reactant.Estimate the value of k.

Solved • Dec 6, 2018

Rate Law

Q. The reaction A → B has been experimentally determined to be second order. The initial rate is 0.0100 M/s at an initial concentration of A of 0.250 ...

Solved • Dec 6, 2018

Rate Law

Q. The reactionI - (aq) + OCl - (aq) → IO - (aq) + Cl - (aq)was studied, and the following data were obtained:c. Calculate the initial rate for an exp...

Solved • Nov 7, 2018

Rate Law

Q. Write the rate laws for the following elementary reactions.a. CH3NC (g) → CH3CN (g)

Solved • Nov 5, 2018

Rate Law

Q. You and a coworker have developed a molecule that has shown potential as cobra antivenin (AV). This antivenin works by binding to the venom (V), th...

Solved • Nov 5, 2018

Rate Law

Q. The rate of the reactionO (g) + NO2 (g) → NO (g) + O2 (g)was studied at a certain temperature.a. In one experiment, NO2 was in large excess, at a c...

Solved • Nov 5, 2018

Rate Law

Q. Carbon disulfide, a poisonous, flammable liquid, is an excellent solvent for phosphorus, sulfur, and some other nonmetals. A kinetic study of its g...

Solved • Nov 1, 2018

Rate Law

Q. The following molecular scenes represent starting mixtures I and II for the reaction of A (black) with B (orange):Each sphere represents 0.010 mol,...

Solved • Nov 1, 2018

Rate Law

Q. Phosgene is a toxic gas prepared by the reaction of carbon monoxide with chlorine:CO(g) + Cl2(g) ⟶ COCl2(g)These data were obtained in a kinetics s...

Solved • Nov 1, 2018

Rate Law

Q. Give the overall reaction order that corresponds to a rate constant with each of the following units: (a) mol/L•s; 

Solved • Nov 1, 2018

Rate Law

Q. By what factor does the rate shown below change if each of the following changes occurs: (c) [HNO2] is halved?

Solved • Nov 1, 2018

Rate Law

Q. Give the individual reaction orders for all substances and the overall reaction order from this rate law:

Solved • Nov 1, 2018

Rate Law

Q. Experiments were conducted to study the rate of the reaction represented by this equation.[2] 2 NO(g) + 2 H2(g) ⟶ N2(g) + 2 H2O(g) Initial concentr...

Solved • Oct 31, 2018

Rate Law

Q. Experiments were conducted to study the rate of the reaction represented by this equation.[2] 2 NO(g) + 2 H2(g) ⟶ N2(g) + 2 H2O(g) Initial concentr...

Solved • Oct 31, 2018

Rate Law

Q. The rate constant for the first-order decomposition at 45 °C of dinitrogen pentoxide, N2O5, dissolved in chloroform, CHCl3, is 6.2 × 10−4 min−1 . 2...

Solved • Oct 31, 2018

Rate Law

Q. For the reaction A ⟶ B + C, the following data were obtained at 30 °C:(a) What is the order of the reaction with respect to [A], and what is the ra...

Solved • Oct 31, 2018

Rate Law

Q. Hydrogen reacts with nitrogen monoxide to form dinitrogen monoxide (laughing gas) according to the equation:H2 (g) + 2NO(g) ⟶ N2O(g) + H2O(g) Deter...

Solved • Oct 31, 2018

Rate Law

Q. Nitrogen monoxide reacts with chlorine according to the equation:2NO(g) + Cl2 (g) ⟶ 2NOCl(g)The following initial rates of reaction have been obser...

Solved • Oct 31, 2018

Rate Law

Q. Nitrosyl chloride, NOCl, decomposes to NO and Cl2.2NOCl(g) ⟶ 2NO(g) + Cl2 (g)Determine the rate equation, the rate constant, and the overall order ...

Solved • Oct 31, 2018

Rate Law

Q. Under certain conditions the decomposition of ammonia on a metal surface gives the following data:Determine the rate equation, the rate constant, a...

Solved • Oct 31, 2018

Rate Law

Q. The decomposition of acetaldehyde is a second order reaction with a rate constant of 4.71 × 10−8 L/mol/s. What is the instantaneous rate of decompo...

Solved • Oct 31, 2018

Rate Law

Q. Tripling the concentration of a reactant increases the rate of a reaction nine times. With this knowledge, answer the following questions:(b) Incre...

Solved • Oct 31, 2018