The reaction of peroxydisulfate ion ( S,0g-) with iodide ion (1") isS,03 (ag) + 31 (aq) → 2s0, (ag) + I3 (ag)From the following data collected at a certain temperature, determine the rate law and calculate therate constant.Experiment [S20g²](M) (M)0.0400Initial Rate [M/s]6.80 x 103.40 x 1010.030020.03000.020030.06000.02006.80 x 104(a) Which of the following equations represents the rate law for this reaction?A. rate = k[S,Og]ŋB. rate = k[S,Og 0C. rate = k[S,Og?0D. rate = k[S,Og o²Аово сор(b) What is the rate constant for the reaction?k=M's

The sum of the exponent term in the rate law for a chemical reaction is known as the order of the…

The reaction of peroxydisulfate ion (S,05) with iodide ion (1) is s,0g (aq) + 31 (aq) → 2s0, (aq) + I3 (aq) From the following data collected at a certain temperature, determine the rate law and calculate the rate constant. [S;Os1(M) [](M)| 0.0300 Experiment Initial Rate [M/s] 6.80 × 10 3.40 x 10 6.80 × 10 1 0.0400 0.0300 0.0200 3 0.0600 0.0200 (a) Which of the following equations represents the rate law for this reaction? A. rate = k[S;OgO B. rate = k[S,Og7n C. rate = k[S,Og0 D. rate = k[S,0g o %3D Aово сор (b) What is the rate constant for the reaction? M's

The reaction of peroxydisulfate ion (S,05) with iodide ion (1) is s,0g (aq) + 31 (aq) → 2s0, (aq) + I3 (aq) From the following data collected at a certain temperature, determine the rate law and calculate the rate constant. [S;Os1(M) [](M)| 0.0300 Experiment Initial Rate [M/s] 6.80 × 10 3.40 x 10 6.80 × 10 1 0.0400 0.0300 0.0200 3 0.0600 0.0200 (a) Which of the following equations represents the rate law for this reaction? A. rate = k[S;OgO B. rate = k[S,Og7n C. rate = k[S,Og0 D. rate = k[S,0g o %3D Aово сор (b) What is the rate constant for the reaction? M's

Chemistry for Engineering Students

4th Edition

ISBN:9781337398909

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter11: Chemical Kinetics

Section: Chapter Questions

Problem 11.110PAE: When formic acid is heated, it decomposes to hydrogen and carbon dioxide in a first-order decay:...

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A drug decomposes in the blood by a first-order process. A pill containing 0.500 g of the active ingredient reaches its maximum concentration of 2.5 mg/ 100 mL of blood. If the half-life of the active ingredient is 75 min, what is its concentration in the blood 2.0 h after the maximum concentration has been reached?
When formic acid is heated, it decomposes to hydrogen and carbon dioxide in a first-order decay. HCOOH(g) CO2(g) + H2(g) At 550 C, the half-life of formic acid is 24.5 minutes. (a) What is the rate constant, and what are its units? (b) How many seconds are needed for formic acid, initially 0.15 M, to decrease to 0.015 M?
The decomposition of ethanol (C2H5OH) on an alumina (Al2O3) surface C2H5OH(g)C2H4(g)+H2O(g) was studied at 600 K. Concentration versus time data were collected for this reaction, and a plot of [A] versus time resulted in a straight line with a slope of 4.00 105 mol/L s. a. Determine the rate law, the integrated rate law, and the value of the rate constant for this reaction. b. If the initial concentration of C2H5OH was 1.25 102 M, calculate the half-life for this reaction. c. How much time is required for all the 1.25 102 M C2H5OH to decompose?
What is the difference between average rate, initial rate, and instantaneous rate?
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.
When formic acid is heated, it decomposes to hydrogen and carbon dioxide in a first-order decay: HCOOH(g)CO2(g)+H2(g) The rate of reaction is monitored by measuring the total pressure in the reaction container. Time (s) Pressure (torr) 0 220 50 324 100 379 150 408 200 423 250 431 300 435 Calculate the rate constant and half-life in seconds for the reaction. At the start of the reaction (time = 0), only formic acid is present. (HINT: Find the partial pressure of formic acid using Dalton's law of partial pressure and the reaction stoichiometry to find PHCOOH at each time.)
The hydrolysis of the sugar sucrose to the sugars glucose and fructose, C12H22O11+H2OC6H12O6+C6H12O6 follows a first-order rate equation for the disappearance of sucrose: Rate =k[C12H22O11] (The products of the reaction, glucose and fructose, have the same molecular formulas but differ in the arrangement of the atoms in their molecules.) (a) In neutral solution, k=2.11011s1 at 27 C and 8.51011s1 at 37 C. Determine the activation energy, the frequency factor, and the rate constant for this equation at 47 C (assuming the kinetics remain consistent with the Arrhenius equation at this temperature). (b) When a solution of sucrose with an initial concentration of 0.150 M reaches equilibrium, the concentration of sucrose is 1.65107M . How long will it take the solution to reach equilibrium at 27 C in the absence of a catalyst? Because the concentration of sucrose at equilibrium is so low, assume that the reaction is irreversible. (c) Why does assuming that the reaction is irreversible simplify the calculation in pan (b)?
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?
The rate constant for the ?rst-order decomposition at 45 C of dinitrogen pentoxide, N2O5, dissolved in chloroform, CHCI3, is 6.2104 min-1. 2N2O54NO2+O2 What is the rate of the reaction when [N2O5] = 0.40 M?
Regular ?ights of supersonic aircraft in the stratosphere ale of concern because such aircraft produce nitric oxide, NO, as a byproduct in the exhaust of their engines. Nitric oxide reacts with ozone, and it has been suggested that this could contribute to depletion of the ozone layer. The reaction NO+O3NO2+O2 is first order with respect to both NO and O3 with a rate constant of 2.20107 L/mol/s. What is the instantaneous rate of disappearance of NO when [NO]=3.3106 M and [O3]=5.9107M?
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?
Experiments have shown that the average frequency of chirping by a snowy tree cricket (Oecanthus fultoni) depends on temperature as shown in the table. Chirping Rate (per min) Temperature (C) 178 25.0 126 20.3 100. 17.3 What is the apparent activation energy of the process that controls the chirping? What is the rate of chirping expected at a temperature of 7.5C?