Chemistry by OpenStax (2015-05-04)
1st Edition
ISBN: 9781938168390
Author: Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher: OpenStax
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Chapter 12, Problem 40E
What is the half-life for the decomposition of O3 when the concentration of O3 is
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Chapter 12 Solutions
Chemistry by OpenStax (2015-05-04)
Ch. 12 - What is the difference between average rate,...Ch. 12 - Ozone decomposes to oxygen according to the...Ch. 12 - In the nuclear industry, chlorine trifluoride is...Ch. 12 - A study of the rate of dimerization of C4H6 gave...Ch. 12 - A study of the rate of the reaction represented as...Ch. 12 - Consider the following reaction in aqueous...Ch. 12 - Describe the effect of each of the following on...Ch. 12 - Explain why an egg cooks move slowly in boiling...Ch. 12 - Go to the PhET Reactions and change to Angled...Ch. 12 - In the PhET Reactions tab to observe how multiple...
Ch. 12 - In the PhET Reactions under Options. (a) Leave...Ch. 12 - How do the rate of a reaction and its rate...Ch. 12 - Doubling the concentration of a reactant increases...Ch. 12 - Tripling the concentration of a reactant increases...Ch. 12 - How much and in what direction will each of the...Ch. 12 - How will each of the following affect the rate of...Ch. 12 - Regular ?ights of supersonic aircraft in the...Ch. 12 - Radioactive phosphorus is used in the study of...Ch. 12 - The rate constant for the radioactive decay of 14C...Ch. 12 - The decomposition of acetaldehyde is a second...Ch. 12 - Alcohol is removed from the bloodstream by a...Ch. 12 - Under certain conditions the decomposition of...Ch. 12 - Nitrosyl chloride, NOCI, decomposes to NO and CI2....Ch. 12 - From the following data, determine the rate...Ch. 12 - Nitrogen monoxide reacts with chlorine according...Ch. 12 - Hydrogen reacts with nitrogen monoxide to form...Ch. 12 - For the reaction AB+C, the following data were...Ch. 12 - For the reaction QW+X, the following data were...Ch. 12 - The rate constant for the ?rst-order decomposition...Ch. 12 - The annual production of HNO3 in 2013 was 60...Ch. 12 - The following data have been determined for the...Ch. 12 - Describe how graphical methods can be used to...Ch. 12 - Use the data provided to graphically determine the...Ch. 12 - Use the data provided in a graphical method to...Ch. 12 - Pure ozone decomposes slowly to oxygen, 2O33O2(g)....Ch. 12 - From the given data, use a graphical method to...Ch. 12 - What is the half-life for the first-order decay of...Ch. 12 - What is the half-life for the first-order decay of...Ch. 12 - What is the half-life for the decomposition of...Ch. 12 - What is the half-life for the decomposition of O3...Ch. 12 - The reaction of compound A to give compounds C and...Ch. 12 - The half-life of a reaction of compound A to give...Ch. 12 - Some bacteria are resistant to the antibiotic...Ch. 12 - Both technetium-99 and thallium-201 are used to...Ch. 12 - There are two molecules with the formula C3H6...Ch. 12 - Fluorine-18 is a radioactive isotope that decays...Ch. 12 - Suppose that the half-life of steroids taken by an...Ch. 12 - Recently, the skeleton of King Richard III was...Ch. 12 - Nitroglycerine is an extremely sensitive...Ch. 12 - For the past 10 years, the unsaturated hydrocarbon...Ch. 12 - Chemical reactions occur when reactants collide....Ch. 12 - When every collision between reactants leads to a...Ch. 12 - What is the activation energy of a reaction, and...Ch. 12 - Account for the relationship between the rate of a...Ch. 12 - Describe how graphical methods can be used to...Ch. 12 - How does an increase in temperature affect rate of...Ch. 12 - The rate of a certain reaction doubles for every...Ch. 12 - In an experiment, a sample of NaClO3 was 90%...Ch. 12 - The rate constant at 325 C for the decomposition...Ch. 12 - The rate constant for the decomposition of...Ch. 12 - An elevated level of the enzyme alkaline...Ch. 12 - In terms of collision theory, to which of the...Ch. 12 - Hydrogen iodide, HI, decomposes in the gas phase...Ch. 12 - The element Co exists in two oxidation states,...Ch. 12 - The hydrolysis of the sugar sucrose to the sugars...Ch. 12 - Use the PhET Reactions Single collision" tab of...Ch. 12 - Use the PhET Reactions Single collision tab of the...Ch. 12 - Why awe elementary reactions involving three or...Ch. 12 - In general, can we predict the effect of doubling...Ch. 12 - Define these terms: (a) unimolecular reaction (b)...Ch. 12 - What is the rate equation for the elementary...Ch. 12 - Given the following reactions and the...Ch. 12 - Write the rate equation for each of the following...Ch. 12 - Nitrogen (Il) oxide, NO, reacts with hydrogen, H2,...Ch. 12 - Experiments were conducted to study the rate of...Ch. 12 - The reaction of CO with CI2 gives phosgene...Ch. 12 - . Account for the increase in reaction rate...Ch. 12 - Compare the functions of homogeneous and...Ch. 12 - Consider this scenario and answer the following...Ch. 12 - For each of the following pairs of reaction...Ch. 12 - For each of the following pairs of reaction...Ch. 12 - For each of the following reaction diagrams,...Ch. 12 - For each of the following reaction diagrams,...Ch. 12 - Based on the diagrams in Exercise 12.83, which of...Ch. 12 - Based on the diagram in Exercise 12.83, which of...
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- The decomposition of iodoethane in the gas phase proceeds according to the following equation: C2H5I(g)C2H4(g)+HI(g) At 660. K, k = 7.2 104 sl; at 720. K, k = 1.7 102 sl. What is the value of the rate constant for this first-order decomposition at 325C? If the initial pressure of iodoethane is 894 torr at 245C, what is the pressure of iodoethane after three half-lives?arrow_forwardThe decomposition of SO2Cl2 is a first-order reaction: SO2Cl2(g) SO2(g) + Cl2(g) The rate constant for the reaction is 2.8 103 min1 at 600 K. If the initial concentration of SO2Cl2 is 1.24 103 mol/L, how long will it take for the concentration to drop to 0.31 103 mol/L?arrow_forwardHydrogen peroxide, H2O2(aq), decomposes to H2O() and O2(g) in a reaction that is first-order in H2O2 and has a rate constant k = 1.06 103 min1 at a given temperature. (a) How long will it take for 15% of a sample of H2O2 to decompose? (b) How long will it take for 85% of the sample to decompose?arrow_forward
- The decomposition of ozone is a second-order reaction with a rate constant of 30.6 atm1 s1 at 95 C. 2O3(g)3O2(g) If ozone is originally present at a partial pressure of 21 torr, calculate the length of time needed for the ozone pressure to decrease to 1.0 torr.arrow_forwardThe dimerization of butadiene, C4H6, to form 1,5-cyclooctadiene is a second-order process that occurs when the diene is heated. In an experiment, a sample of 0.0087 mol of C4H6 was heated in a 1.0-L flask. After 600. seconds, 21% of the butadiene had dimerized. Calculate the rate constant for this reaction.arrow_forwardThe Raschig reaction produces the industrially important reducing agent hydrazine, N2H4, from ammonia, NH3, and hypochlorite ion, OCl−, in basic aqueous solution. A proposed mechanism is Step 1: Step 2: Step 3: What is the overall stoichiometric equation? Which step is rate-limiting? What reaction intermediates are involved? What rate law is predicted by this mechanism?arrow_forward
- The catalyzed decomposition of hydrogen peroxide is first-order in [H2O2]. It was found that the concentration of H2O2 decreased from 0.24 M to 0.060 M over a period of 282 minutes. What is the half-life of H2O2? What is the rate constant for this reaction? What is the initial rate of decomposition at the beginning of this experiment (when [H2O2] = 0.24 M)?arrow_forwardIn Exercise 11.39, if the initial concentration of N2Oj is 0.100 .\1. how long will it take for the concentration to drop to 0.0100 times its original value? The decomposition of N2O5 in solution in carbon tetrachloride is a first-order reaction: 2N2O5—»4NO2 + O2 The rate constant at a given temperature is found to be 5.25 X 10-4 s-’. If the initial concentration of N2O5 is 0.200 M, what is its concentration after exactly 10 minutes have passed?arrow_forwardIsomerization of CH3NC occurs slowly when CH3NC is heated. CH3NC(g) CH3CN(g) To study the rate of this reaction at 488 K, data on [CH3NC] were collected at various times. Analysis led to the following graph. (a) What is the rate law for this reaction? (b) What is the equation for the straight line in this graph? (c) Calculate the rate constant for this reaction. (d) How long does it take for half of the sample to isomerize? (e) What is the concentration of CH3NC after 1.0 104 s?arrow_forward
- Ozone, O3, in the Earths upper atmosphere decomposes according to the equation 2 O3(g) 3 O2(g) The mechanism of the reaction is thought to proceed through an initial fast, reversible step followed by a slow, second step. Step 1: Fast, reversible O3(g) O2(g) + O(g) Step 2: Slow O3(g) + O(g) 2 O2(g) (a) Which of the steps is rate-determining? (b) Write the rate equation for the rate-determining steparrow_forwardThe reaction NO(g) + 1/2 Cl2(g) NOCl(g) is first-order in [Cl2] and second-order with respect to [NO]. Under a given set of conditions, the initial rate of this reaction is 620 106 mol/L s. What is the rate of this reaction if the concentration of NO is doubled and the concentration of Cl2 is reduced to half the original value? (a) 6.20 106 mol/L s (b) 124 105 mol/L s (c) 2.48 105 mol/L s (d) 4.96 105 mol/L sarrow_forwardGaseous azomethane (CH3N2CH3) decomposes to ethane and nitrogen when heated: CH3N2CH3(g) CH3CH3(g) + N2(g) The decomposition of azomethane is a first-order reaction with k = 3.6 104 s1 at 600 K. (a) A sample of gaseous CH3N2CH3 is placed in a flask and heated at 600 K for 150 seconds. What fraction of the initial sample remains after this time? (b) How long must a sample be heated so that 99% of the sample has decomposed?arrow_forward
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