Chemistry for Engineering Students
3rd Edition
ISBN: 9781285199023
Author: Lawrence S. Brown, Tom Holme
Publisher: Cengage Learning
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Chapter 11, Problem 11.43PAE
As with any drug, aspirin (acetylsalicylic acid) must remain in the bloodstream long enough to be effective. Assume that the removal of aspirin from the bloodstream into the urine is a lirst-order reaction, with a half-life of about 3
hours. The instructions on an aspirin bottle say to take 1 or 2 tablets every 4 hours. If a person takes 2 aspirin tablets, how much aspirin remains in the bloodstream when it is time for the second dose? (A standard tablet contains 325 mg of aspirin.)
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Chapter 11 Solutions
Chemistry for Engineering Students
Ch. 11 - Prob. 1COCh. 11 - . define the rate of a chemical reaction and...Ch. 11 - Prob. 3COCh. 11 - Prob. 4COCh. 11 - . explain the difference between elementary...Ch. 11 - . find the rate law predicted for a particular...Ch. 11 - . use a molecular perspective to explain the...Ch. 11 - Prob. 8COCh. 11 - . explain the role of a catalyst in the design of...Ch. 11 - Prob. 11.1PAE
Ch. 11 - Prob. 11.2PAECh. 11 - In what region of the atmosphere is ozone...Ch. 11 - What are the steps in the Chapman cycle? Explain...Ch. 11 - What is the net chemical reaction associated with...Ch. 11 - At what points in the Chapman cycle do...Ch. 11 - Prob. 11.7PAECh. 11 - Prob. 11.8PAECh. 11 - Prob. 11.9PAECh. 11 - For each of the following, suggest appropriate...Ch. 11 - For each of the following, suggest an appropriate...Ch. 11 - Rank the following in order of increasing reaction...Ch. 11 - Prob. 11.13PAECh. 11 - Candle wax is a mixture of hydrocarbons. In the...Ch. 11 - Prob. 11.15PAECh. 11 - The reaction for the Haber process, the industrial...Ch. 11 - 11.17 Ammonia can react with oxygen to produce...Ch. 11 - The following data were obtained in the...Ch. 11 - Prob. 11.19PAECh. 11 - Experimental data are listed here for the reaction...Ch. 11 - Azomethane, CH3NNCH3, is not a stable compound,...Ch. 11 - Prob. 11.22PAECh. 11 - A reaction has the experimental rate equation Rate...Ch. 11 - Second-order rate constants used in modeling...Ch. 11 - For each of the rate laws below, what is the order...Ch. 11 - 11.26 The reaction of C(Xg) with NO2(g) is second...Ch. 11 - Prob. 11.27PAECh. 11 - Prob. 11.28PAECh. 11 - The hypothetical reaction, A + B —*C, has the rate...Ch. 11 - The rate of the decomposition of hydrogen...Ch. 11 - Prob. 11.31PAECh. 11 - 11.32 The following experimental data were...Ch. 11 - The following experimental data were obtained for...Ch. 11 - 11.34 Rate data were obtained at 25°C for the...Ch. 11 - 11.35 For the reaction 2 NO(g) + 2 H?(g) — N,(g) +...Ch. 11 - The reaction NO(g) + O,(g) — NO,(g) + 0(g) plays a...Ch. 11 - Prob. 11.37PAECh. 11 - Prob. 11.38PAECh. 11 - The decomposition of N2O5 in solution in carbon...Ch. 11 - In Exercise 11.39, if the initial concentration of...Ch. 11 - 11.41 For a drug to be effective in treating an...Ch. 11 - Amoxicillin is an antibiotic packaged as a powder....Ch. 11 - As with any drug, aspirin (acetylsalicylic acid)...Ch. 11 - 11.44 A possible reaction for the degradation of...Ch. 11 - The initial concentration of the reactant in a...Ch. 11 - A substance undergoes first-order decomposition....Ch. 11 - Prob. 11.47PAECh. 11 - 11.48 The following data were collected for the...Ch. 11 - The rate of photodecomposition of the herbicide...Ch. 11 - Prob. 11.50PAECh. 11 - 11.51 Peroxyacetyl nitrate (PAN) has the chemical...Ch. 11 - Prob. 11.52PAECh. 11 - Hydrogen peroxide (H20i) decomposes into water and...Ch. 11 - use the kineticmolecular theory to explain why an...Ch. 11 - The activation energy for the reaction in which...Ch. 11 - The labels on most pharmaceuticals state that the...Ch. 11 - The following rate constants were obtained in an...Ch. 11 - The table below presents measured rate constants...Ch. 11 - Prob. 11.59PAECh. 11 - Prob. 11.60PAECh. 11 - Prob. 11.61PAECh. 11 - Prob. 11.62PAECh. 11 - Can a reaction mechanism ever be proven correct?...Ch. 11 - Prob. 11.64PAECh. 11 - Describe how the Chapman cycle is a reaction...Ch. 11 - Prob. 11.66PAECh. 11 - Prob. 11.67PAECh. 11 - Prob. 11.68PAECh. 11 - The following mechanism is proposed for a...Ch. 11 - 11.64 HBr is oxidized in the following reaction: 4...Ch. 11 - Prob. 11.71PAECh. 11 - If a textbook defined a catalyst as "a substance...Ch. 11 - Prob. 11.73PAECh. 11 - Prob. 11.74PAECh. 11 - What distinguishes homogeneous and heterogeneous...Ch. 11 - Prob. 11.76PAECh. 11 - Based on the kinetic theory of matter, what would...Ch. 11 - Prob. 11.78PAECh. 11 - In Chapter 3, we discussed the conversion of...Ch. 11 - The label on a bottle of 3% (by volume) hydrogen...Ch. 11 - Prob. 11.81PAECh. 11 - Prob. 11.82PAECh. 11 - Prob. 11.83PAECh. 11 - Prob. 11.84PAECh. 11 - Prob. 11.85PAECh. 11 - Prob. 11.86PAECh. 11 - Prob. 11.87PAECh. 11 - Prob. 11.88PAECh. 11 - Prob. 11.89PAECh. 11 - Prob. 11.90PAECh. 11 - Prob. 11.91PAECh. 11 - Prob. 11.92PAECh. 11 - Prob. 11.93PAECh. 11 - Prob. 11.94PAECh. 11 - 11.93 On a particular day, the ozone level in...Ch. 11 - Prob. 11.96PAECh. 11 - The following is a thought experiment. Imagine...Ch. 11 - The following statements relate to the reaction...Ch. 11 - Prob. 11.99PAECh. 11 - Experiments show that the reaction of nitrogen...Ch. 11 - Substances that poison a catalyst pose a major...Ch. 11 - Prob. 11.102PAECh. 11 - Prob. 11.103PAECh. 11 - 11.102 Suppose that you are studying a reaction...Ch. 11 - Prob. 11.105PAECh. 11 - Prob. 11.106PAECh. 11 - Prob. 11.107PAECh. 11 - Prob. 11.108PAECh. 11 - 11.1047 Fluorine often reacts explosively. What...Ch. 11 - Prob. 11.110PAECh. 11 - Prob. 11.111PAECh. 11 - When formic acid is heated, it decomposes to...
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- 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 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)?arrow_forwardAt 573 K, gaseous NO2(g) decomposes, forming NO(g) and O2(g). If a vessel containing NO2(g) has an initial concentration of 1.9 102 mol/L, how long will it take for 75% of the NO2(g) to decompose? The decomposition of NO2(g) is second-order in the reactant and the rate constant for this reaction, at 573 K, is 1.1 L/mol s.arrow_forward
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Kinetics: Chemistry's Demolition Derby - Crash Course Chemistry #32; Author: Crash Course;https://www.youtube.com/watch?v=7qOFtL3VEBc;License: Standard YouTube License, CC-BY