Chemistry: A Molecular Approach Plus Mastering Chemistry with Pearson eText -- Access Card Package (4th Edition) (New Chemistry Titles from Niva Tro)
4th Edition
ISBN: 9780134103976
Author: Nivaldo J. Tro
Publisher: PEARSON
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Chapter 14, Problem 21E
Interpretation Introduction
To explain: The difference between homogeneous catalysis and heterogeneous catalysis.
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Propagation of uncertainty. You have a stock solution certified by the manufacturer to contain 150.0±0.03 µg SO42-/mL. You would like to dilute it by a factor of 100 to obtain 1.500 µg/mL. Calculate the uncertainty in the two methods of dilution below. Use the following uncertainty values for glassware:
Glassware
Uncertainty
(assume glassware has been calibrated and treat the values below as random error)
1.00 mL volumetric pipet
0.01 mL
10.00 mL volumetric pipet
0.02 mL
100.00 mL volumetric flask
0.08 mL
Transfer 10.00 mL with a volumetric pipet and dilute it to 100 mL with a volumetric flask. Then take 10.00 mL of the resulting solution and dilute it a second time with a 100 mL flask.
2. Transfer 1.00 mL with a volumetric pipet and dilute it to 100 mL with a volumetric flask.
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What is the average mass of the 10 pennies? Report your value with correct significant figures.
What is the error (uncertainty) associated with each mass measurement due to the equipment?
What is the uncertainty associated with the average value? Note that the uncertainty of the balance will propagate throughout the calculation.
What is the standard deviation of the 10 mass measurements?
Explain the difference between the propagated uncertainty and the standard deviation. Which number would you use to describe the uncertainty in the measurement?
Calculate the total mass of the pennies with associated uncertainty.
Calculate the average density of a penny based on these data. Propagate the uncertainty values for both mass and volume in your calculations.
Chapter 14 Solutions
Chemistry: A Molecular Approach Plus Mastering Chemistry with Pearson eText -- Access Card Package (4th Edition) (New Chemistry Titles from Niva Tro)
Ch. 14 - Prob. 1SAQCh. 14 - Q2. Dinitrogen monoxide decomposes into nitrogen...Ch. 14 - Q3. This plot shows the rate of the decomposition...Ch. 14 - Q4. For the reaction 2 A + B → C, the initial rate...Ch. 14 - Prob. 5SAQCh. 14 - Prob. 6SAQCh. 14 - Prob. 7SAQCh. 14 - Prob. 8SAQCh. 14 - Q9. The rate constant of a reaction is measured at...Ch. 14 - Prob. 10SAQ
Ch. 14 - Prob. 11SAQCh. 14 - Q12. Which statement is true regarding the...Ch. 14 - Prob. 13SAQCh. 14 - Q14. Use collision theory to determine which...Ch. 14 - Q15. Carbon monoxide and chlorine gas react to...Ch. 14 - Prob. 1ECh. 14 - Prob. 2ECh. 14 - Prob. 3ECh. 14 - 4. Why is the reaction rate for reactants defined...Ch. 14 - Prob. 5ECh. 14 - Prob. 6ECh. 14 - Prob. 7ECh. 14 - 8. For a reaction with multiple reactants, how is...Ch. 14 - 9. Explain the difference between the rate law for...Ch. 14 - 10. Write integrated rate laws for zero-order,...Ch. 14 - Prob. 11ECh. 14 - 12. How do reaction rates typically depend on...Ch. 14 - Prob. 13ECh. 14 - 14. What is an Arrhenius plot? Explain the...Ch. 14 - Prob. 15ECh. 14 - Prob. 16ECh. 14 - 17. In a reaction mechanism, what is an elementary...Ch. 14 - 18. What are the two requirements for a proposed...Ch. 14 - 19. What is an intermediate within a reaction...Ch. 14 - Prob. 20ECh. 14 - 21. Explain the difference between homogeneous...Ch. 14 - Prob. 22ECh. 14 - Prob. 23ECh. 14 - Prob. 24ECh. 14 - 25. Consider the reaction:
2 HBr(g) → H2(g) +...Ch. 14 - 26. Consider the reaction:
2 N2O(g) → 2 N2(g) +...Ch. 14 - 27. For the reaction 2 A(g) + B(g) → 3 C(g),
a....Ch. 14 - 28. For the reaction A(g) + B(g) → 2 C(g),
a....Ch. 14 - 29. Consider the reaction:
Cl2(g) + 3 F2(g) → 2...Ch. 14 - Prob. 30ECh. 14 - Prob. 31ECh. 14 - Prob. 32ECh. 14 - Prob. 33ECh. 14 - 34. Consider the reaction:
2 H2O2(aq) → 2 H2O(l) +...Ch. 14 - Prob. 35ECh. 14 - Prob. 36ECh. 14 - Prob. 37ECh. 14 - 38. This reaction is first order in N2O5:
N2O5(g)...Ch. 14 - Prob. 39ECh. 14 - Prob. 40ECh. 14 - Prob. 41ECh. 14 - 42. Consider the data showing the initial rate of...Ch. 14 - Prob. 43ECh. 14 - Prob. 44ECh. 14 - 45. The tabulated data were collected for this...Ch. 14 - 46. The tabulated data were collected for this...Ch. 14 - 47. Indicate the order of reaction consistent with...Ch. 14 - 48. Indicate the order of reaction consistent with...Ch. 14 - 49. The tabulated data show the concentration of...Ch. 14 - Prob. 50ECh. 14 - 51. The tabulated data show the concentration of...Ch. 14 - 52. The reaction A → products was monitored as a...Ch. 14 - Prob. 53ECh. 14 - Prob. 54ECh. 14 - Prob. 55ECh. 14 - Prob. 56ECh. 14 - 57. The half-life for the radioactive decay of...Ch. 14 - 58. The half-life for the radioactive decay of...Ch. 14 - Prob. 59ECh. 14 - Prob. 60ECh. 14 - Prob. 61ECh. 14 - Prob. 62ECh. 14 - Prob. 63ECh. 14 - Prob. 64ECh. 14 - 65. The data shown here were collected for the...Ch. 14 - Prob. 66ECh. 14 - 67. The tabulated data were collected for the...Ch. 14 - 68. The tabulated data show the rate constant of a...Ch. 14 - 69. A reaction has a rate constant of 0.0117/s at...Ch. 14 - 70. A reaction has a rate constant of 0.000122/s...Ch. 14 - Prob. 71ECh. 14 - Prob. 72ECh. 14 - Prob. 73ECh. 14 - Prob. 74ECh. 14 - Prob. 75ECh. 14 - Prob. 76ECh. 14 - Prob. 77ECh. 14 - Prob. 78ECh. 14 - 79. Many heterogeneous catalysts are deposited on...Ch. 14 - 80. Suppose that the reaction A → products is...Ch. 14 - 81. Suppose that a catalyst lowers the activation...Ch. 14 - Prob. 82ECh. 14 - Prob. 83ECh. 14 - Prob. 84ECh. 14 - Prob. 85ECh. 14 - Prob. 86ECh. 14 - Prob. 87ECh. 14 - Prob. 88ECh. 14 - Prob. 89ECh. 14 - Prob. 90ECh. 14 - 91. Iodine atoms combine to form I2 in liquid...Ch. 14 - 92. The hydrolysis of sucrose (C12H22O11) into...Ch. 14 - Prob. 93ECh. 14 - Prob. 94ECh. 14 - Prob. 95ECh. 14 - Prob. 96ECh. 14 - 97. The desorption (leaving of the surface) of a...Ch. 14 - Prob. 98ECh. 14 - 99. The kinetics of this reaction were studied as...Ch. 14 - Prob. 100ECh. 14 - Prob. 101ECh. 14 - 102. Consider the two reactions:
a. Why is the...Ch. 14 - 103. Anthropologists can estimate the age of a...Ch. 14 - 104. Geologists can estimate the age of rocks by...Ch. 14 - Prob. 105ECh. 14 - 106. Consider the reaction:
2 NH3(aq) + OCl–(aq) →...Ch. 14 - Prob. 107ECh. 14 - Prob. 108ECh. 14 - Prob. 109ECh. 14 - Prob. 110ECh. 14 - Prob. 111ECh. 14 - Prob. 112ECh. 14 - 113. In this chapter we have seen a number of...Ch. 14 - Prob. 114ECh. 14 - 115. The previous exercise shows how the...Ch. 14 - Prob. 116ECh. 14 - Prob. 117ECh. 14 - Prob. 118ECh. 14 - Prob. 119ECh. 14 - Prob. 120ECh. 14 - Prob. 121ECh. 14 - Prob. 122ECh. 14 - Prob. 123QGWCh. 14 - 124. A certain compound, A, reacts to form...Ch. 14 - 125. The color of food is an important component...
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