Student Solutions Manual For Masterton/hurley's Chemistry: Principles And Reactions, 8th
8th Edition
ISBN: 9781305095236
Author: Maria Cecilia D. De Mesa, Thomas D. Mcgrath
Publisher: Cengage Learning
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Textbook Question
Chapter 11, Problem 94QAP
Three first-order reactions have the following activation energies:
(a) Which reaction is the fastest?
(b) Which reaction has the largest half-life?
(c) Which reaction has the largest rate?
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Students have asked these similar questions
Which of the following is correct?
(A) The activation energy changes when temperature changes.
(B) The Arrhenius equation only applies to 1st order reactions.
(C) The rate constants at higher temperatures are ALWAYS larger than at low temperatures for the same chemical reaction.
(D) The rates of reaction at higher temperatures are ALWAYS larger than at low temperatures for the same chemical reaction.
3) In the first order "A Product" reaction at 25°C, the initial concentration of compound "A" is
0.8158 M, and its concentration after 15.9 minutes is 0.6311 M. For this first-order reaction,
(a) What is the rate constant k, in min?
(b) What is the half-life, in min?
(c) What will be the molar concentration of "A" after 150 minutes?
(d) If the activation energy of this reaction is 34.5 kJ/mol, at what temperature would the half-
life of this reaction be 10.0 minutes?
The radioactive isotope 28Mg has a half-life of 20.9 hours.
(a) What is the rate constant for this first-order reaction?
(b) What fraction of the isotope remains after 24 hours? Assume 3 significant figures in your calculations.
Chapter 11 Solutions
Student Solutions Manual For Masterton/hurley's Chemistry: Principles And Reactions, 8th
Ch. 11 - Express the rate of the reaction...Ch. 11 - Express the rate of the reaction...Ch. 11 - Consider the following hypothetical reaction: X( g...Ch. 11 - Consider the following hypothetical reaction:...Ch. 11 - Consider the combustion of ethane:...Ch. 11 - For the reaction 5Br(aq)+BrO3(aq)+6...Ch. 11 - Nitrosyl chloride (NOCI) decomposes to nitrogen...Ch. 11 - Ammonia is produced by the reaction between...Ch. 11 - Experimental data are listed for the following...Ch. 11 - Experimental data are listed for the hypothetical...
Ch. 11 - A reaction has two reactants X and Y. What is the...Ch. 11 - A reaction has two reactants Q and P. What is the...Ch. 11 - What will the units of the rate constants in...Ch. 11 - What will the units of the rate constants in...Ch. 11 - Consider the reaction ZproductsThe data below give...Ch. 11 - Consider the reaction YproductsThe graph below...Ch. 11 - Complete the following table for the reaction...Ch. 11 - Complete the following table for the reaction...Ch. 11 - The decomposition of nitrogen dioxide is a...Ch. 11 - The decomposition of ammonia on tungsten at 1100C...Ch. 11 - The reaction ICl(g)+12 H2(g)12 I2(g)+HCl(g)is...Ch. 11 - The hypothetical reaction X(g)+12Y(g)productsis...Ch. 11 - For a reaction involving the decomposition of Z at...Ch. 11 - For a reaction involving the decomposition of Y,...Ch. 11 - When boron trifluoride reacts with ammonia, the...Ch. 11 - When nitrogen dioxide reacts with carbon monoxide,...Ch. 11 - Hydrogen bromide is a highly reactive and...Ch. 11 - Diethylhydrazine reacts with iodine according to...Ch. 11 - The equation for the reaction between iodide and...Ch. 11 - Prob. 30QAPCh. 11 - In a solution at a constant H+ concentration,...Ch. 11 - Consider the reaction Â...Ch. 11 - Nitrosyl bromide decomposes to nitrogen oxide and...Ch. 11 - Prob. 34QAPCh. 11 - Azomethane decomposes into nitrogen and ethane at...Ch. 11 - The decomposition of sulfuryl chloride, SO2Cl2, to...Ch. 11 - The first-order rate constant for the...Ch. 11 - Consider the first-order decomposition of phosgene...Ch. 11 - The decomposition of azomethane, (CH3)2N2, to...Ch. 11 - The first-order rate constant for the...Ch. 11 - In the first-order decomposition of acetone at...Ch. 11 - The decomposition of sulfuryl chlorideSO2Cl2fur...Ch. 11 - Dinitrogen pentoxide gas decomposes to form...Ch. 11 - Sucrose (C12H22O11) hydrolyzes into glucose and...Ch. 11 - Iodine-131 is used to treat tumors in the thyroid....Ch. 11 - Cesium-131 is the latest tool of nuclear medicine....Ch. 11 - Prob. 47QAPCh. 11 - A sample of sodium-24 chloride contains 0.050 mg...Ch. 11 - The decomposition of A at 850C is a zero-order...Ch. 11 - The decomposition of R at 33C is a zero-order...Ch. 11 - For the zero-order decomposition of HI on a gold...Ch. 11 - For the zero-order decomposition of ammonia on...Ch. 11 - Ammonium cyanate, NH4NCO, in water rearranges to...Ch. 11 - Butadiene, C4H6, dimerizes according to the...Ch. 11 - The rate constant for the second-order reaction...Ch. 11 - The decomposition of nitrosyl chloride...Ch. 11 - An increase in temperature from 23C to 36C...Ch. 11 - If the activation energy of a reaction is 9.13 kJ,...Ch. 11 - The following data are obtained for the gas-phase...Ch. 11 - The following data are obtained for the...Ch. 11 - Consider the following hypothetical reaction:...Ch. 11 - For the reaction: Q+RY+ZH=128kJ Draw a...Ch. 11 - The uncoiling of deoxyribonucleic acid (DNA) is a...Ch. 11 - The precipitation of egg albumin in water at 100C...Ch. 11 - Prob. 65QAPCh. 11 - Prob. 66QAPCh. 11 - For the reaction 2N2O(g)2N2(g)+O2(g) the rate...Ch. 11 - For the decomposition of a peroxide, the...Ch. 11 - Consider a 5.000 M solution of the hypothetical...Ch. 11 - The decomposition of N2O5 to NO2 and NO3 is a...Ch. 11 - For a certain reaction, Ea is 135 kJ and H=45 kJ....Ch. 11 - Consider a reaction in which E a=129 kJ and H=29...Ch. 11 - A catalyst lowers the activation energy of a...Ch. 11 - A reaction has an activation energy of 363 kJ at...Ch. 11 - Write the rate expression for each of the...Ch. 11 - Write the rate expression for each of the...Ch. 11 - For the reaction between hydrogen and iodine,...Ch. 11 - For the reaction 2H2(g)+2NO(g)N2(g)+2H2O(g) the...Ch. 11 - At low temperatures, the rate law for the reaction...Ch. 11 - Two mechanisms are proposed for the reaction...Ch. 11 - The hypothetical reaction QR+Xproductswas...Ch. 11 - When a base is added to an aqueous solution of...Ch. 11 - The decomposition of sulfuryl chloride, SO2Cl2, to...Ch. 11 - How much faster would a reaction proceed at 46C...Ch. 11 - Prob. 85QAPCh. 11 - Prob. 86QAPCh. 11 - A drug decomposes in the blood by a first-order...Ch. 11 - Prob. 88QAPCh. 11 - Prob. 89QAPCh. 11 - Prob. 90QAPCh. 11 - Consider the decomposition of A represented by...Ch. 11 - Consider the decomposition reaction 2X2Y+ZThe...Ch. 11 - Consider the following activation energy diagram....Ch. 11 - Three first-order reactions have the following...Ch. 11 - Consider the first-order decomposition reaction...Ch. 11 - Consider the following energy diagram (not to...Ch. 11 - Prob. 97QAPCh. 11 - Prob. 98QAPCh. 11 - The gas-phase reaction between hydrogen and iodine...Ch. 11 - Consider the coagulation of a protein at 100C. The...Ch. 11 - Prob. 101QAPCh. 11 - Prob. 102QAPCh. 11 - Prob. 103QAPCh. 11 - In a first-order reaction, suppose that a quantity...Ch. 11 - Consider the hypothetical first-order reaction...
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- . Account for the increase in reaction rate brought about by a catalyst.arrow_forwardAccount for the relationship between the rate of a reaction and its activation energy.arrow_forwardIndicate whether each statement is true or false.(a) If you measure the rate constant for a reaction at differenttemperatures, you can calculate the overall enthalpychange for the reaction.(b) Exothermic reactions are faster than endothermicreactions.(c) If you double the temperature for a reaction, you cutthe activation energy in half.arrow_forward
- The half-life of a reaction of compound A to give compounds D and E is 7.75 min when the initial concentration of A is 0.165 mol/L. (a) How long will it take (in min) for the concentration to drop to 0.0330 mol/L if the reaction is first order with respect to A? min (b) How long will it take (in min) for the concentration to drop to 0.0330 mol/L if the reaction is second order with respect to A?arrow_forwardTripling the concentration of a reactant increases the rate of a reaction nine times. With this knowledge, answer the following questions:(a) What is the order of the reaction with respect to that reactant?(b) Increasing the concentration of a reactant by a factor of four increases the rate of a reaction four times. What is the order of the reaction with respect to that reactant?arrow_forwardIndicate whether each statement is true or false. (a) If you compare two reactions with similar collision factors, the one with the larger activation energy will be faster. (b) A reaction that has a small rate constant must have a small frequency factor. (c) Increasing the reaction temperature increases the fraction of successful collisions between reactants.arrow_forward
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