Mastering Chemistry with Pearson eText -- Standalone Access Card -- for Chemistry: A Molecular Approach (4th Edition)
4th Edition
ISBN: 9780134162485
Author: Nivaldo J. Tro
Publisher: PEARSON
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Chapter 15, Problem 12SAQ
Interpretation Introduction
To determine: Equilibrium constant
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There is an instrument in Johnson 334 that measures total-reflectance x-ray fluorescence (TXRF) to do elemental analysis (i.e., determine what elements are present in a sample). A researcher is preparing a to measure calcium content in a series of well water samples by TXRF with an internal standard of vanadium (atomic symbol: V). She has prepared a series of standard solutions to ensure a linear instrument response over the expected Ca concentration range of 40-80 ppm. The concentrations of Ca and V (ppm) and the instrument response (peak area, arbitrary units) are shown below. Also included is a sample spectrum. Equation 1 describes the response factor, K, relating the analyte signal (SA) and the standard signal (SIS) to their respective concentrations (CA and CIS).
Ca, ppm
V, ppm
SCa, arb. units
SV, arb. units
20.0
10.0
14375.11
14261.02
40.0
10.0
36182.15
17997.10
60.0
10.0
39275.74
12988.01
80.0
10.0
57530.75
14268.54
100.0…
A mixture of 0.568 M H₂O, 0.438 M Cl₂O, and 0.710 M HClO are enclosed in a vessel at 25 °C.
H₂O(g) + C₁₂O(g) = 2 HOCl(g)
K = 0.0900 at 25°C
с
Calculate the equilibrium concentrations of each gas at 25 °C.
[H₂O]=
[C₁₂O]=
[HOCI]=
M
Σ
M
What units (if any) does the response factor (K) have? Does the response factor (K) depend upon how the concentration is expressed (e.g. molarity, ppm, ppb, etc.)?
Chapter 15 Solutions
Mastering Chemistry with Pearson eText -- Standalone Access Card -- for Chemistry: A Molecular Approach (4th Edition)
Ch. 15 - Prob. 1SAQCh. 15 - Q2. The equilibrium constant for the reaction...Ch. 15 - Q3. Use the data shown here to find the...Ch. 15 - Prob. 4SAQCh. 15 - Prob. 5SAQCh. 15 - Q6. For the reaction 2 A(g) B(g), the equilibrium...Ch. 15 - Q7. Consider the reaction between iodine gas and...Ch. 15 - Prob. 8SAQCh. 15 - Prob. 9SAQCh. 15 - Prob. 10SAQ
Ch. 15 - Prob. 11SAQCh. 15 - Prob. 12SAQCh. 15 - 1. How does a developing fetus get oxygen in the...Ch. 15 - Prob. 2ECh. 15 - Prob. 3ECh. 15 - Prob. 4ECh. 15 - Prob. 5ECh. 15 - Prob. 6ECh. 15 - Prob. 7ECh. 15 - Prob. 8ECh. 15 - Prob. 9ECh. 15 - Prob. 10ECh. 15 - Prob. 11ECh. 15 - Prob. 12ECh. 15 - Prob. 13ECh. 15 - Prob. 14ECh. 15 - Prob. 15ECh. 15 - Prob. 16ECh. 15 - Prob. 17ECh. 15 - Prob. 18ECh. 15 - Prob. 19ECh. 15 - Prob. 20ECh. 15 - Prob. 21ECh. 15 - Prob. 22ECh. 15 - 23. When this reaction comes to equilibrium, will...Ch. 15 - Prob. 24ECh. 15 - 25. H2 and I2 are combined in a flask and allowed...Ch. 15 - Prob. 26ECh. 15 - Prob. 27ECh. 15 - 28. This reaction has an equilibrium constant of...Ch. 15 - 29. Consider the reactions and their respective...Ch. 15 - 30. Use the reactions and their equilibrium...Ch. 15 - Prob. 31ECh. 15 - 32. Calculate Kp for each reaction.
a. N2O4(g) 2...Ch. 15 - 33. Write an equilibrium expression for each...Ch. 15 - 34. Find and fix the mistake in the equilibrium...Ch. 15 - Prob. 35ECh. 15 - Prob. 36ECh. 15 - 37. Consider the reaction:
N2(g) + 3 H2(g) 2...Ch. 15 - 38. Consider the following reaction:
H2(g) + I2(g)...Ch. 15 - 39. Consider the reaction:
2 NO(g) + Br2(g) 2...Ch. 15 - 40. Consider the reaction:
SO2Cl2(g) SO2(g) +...Ch. 15 - 41. For the reaction A(g) 2 B(g), a reaction...Ch. 15 - Prob. 42ECh. 15 - 43. Consider the reaction:
Fe3+(aq) + SCN–(aq) ...Ch. 15 - 44. Consider the reaction:
SO2Cl2(g) SO2(g) +...Ch. 15 - 45. Consider the reaction:
H2(g) + I2(g) 2...Ch. 15 - 46. Consider the reaction:
CO(g) + 2 H2(g) ...Ch. 15 - 47. Consider the reaction:
NH4HS(s) NH3(g) +...Ch. 15 - 48. Consider the reaction:
2 H2S(g) 2 H2(g) +...Ch. 15 - 49. Silver sulfate dissolves in water according to...Ch. 15 - 50. Nitrogen dioxide dimerizes according to the...Ch. 15 - 51. Consider the reaction and the associated...Ch. 15 - 52. Consider the reaction and the associated...Ch. 15 - 53. For the reaction shown here, Kc = 0.513 at 500...Ch. 15 - 54. For the reaction shown here, Kc = 255 at 1000...Ch. 15 - 55. Consider the reaction:
NiO(s) + CO(g) Ni(s) +...Ch. 15 - 56. Consider the reaction:
CO(g) + H2O(g) CO2(g)...Ch. 15 - 57. Consider the reaction:
HC2H3O2(aq) + H2O(l) ...Ch. 15 - 58. Consider the reaction:
SO2Cl2(g) SO2(g) +...Ch. 15 - 59. Consider the reaction:
Br2(g) + Cl2(g) 2...Ch. 15 - 60. Consider the reaction:
CO(g) + H2O(g) CO2(g)...Ch. 15 - Prob. 61ECh. 15 - Prob. 62ECh. 15 - Prob. 63ECh. 15 - 64. Consider this reaction at equilibrium:
2...Ch. 15 - 65. Consider this reaction at equilibrium:
2...Ch. 15 - 66. Consider this reaction at equilibrium:
C(s) +...Ch. 15 - 67. Each reaction is allowed to come to...Ch. 15 - Prob. 68ECh. 15 - Prob. 69ECh. 15 - Prob. 70ECh. 15 - Prob. 71ECh. 15 - Prob. 72ECh. 15 - 73. Carbon monoxide replaces oxygen in oxygenated...Ch. 15 - Prob. 74ECh. 15 - Prob. 75ECh. 15 - 76. A mixture of water and graphite is heated to...Ch. 15 - Prob. 77ECh. 15 - 78. A system at equilibrium contains I2(g) at a...Ch. 15 - Prob. 79ECh. 15 - Prob. 80ECh. 15 - Prob. 81ECh. 15 - Prob. 82ECh. 15 - Prob. 83ECh. 15 - Prob. 84ECh. 15 - 85. The system described by the reaction: CO(g) +...Ch. 15 - Prob. 86ECh. 15 - 87. At 70 K, CCl4 decomposes to carbon and...Ch. 15 - Prob. 88ECh. 15 - 89. A sample of CaCO3(s) is introduced into a...Ch. 15 - Prob. 90ECh. 15 - Prob. 91ECh. 15 - Prob. 92ECh. 15 - Prob. 93ECh. 15 - Prob. 94ECh. 15 - Prob. 95ECh. 15 - Prob. 96ECh. 15 - Prob. 97ECh. 15 - Prob. 98ECh. 15 - 99. A sample of SO3 is introduced into an...Ch. 15 - 100. A reaction A(g) B(g) has an equilibrium...Ch. 15 - Prob. 101ECh. 15 - Prob. 102ECh. 15 - Prob. 103ECh. 15 - Prob. 104ECh. 15 - Prob. 105ECh. 15 - Prob. 106QGWCh. 15 - Prob. 107QGWCh. 15 - Prob. 108QGWCh. 15 - Prob. 109QGWCh. 15 - Prob. 110QGWCh. 15 - Prob. 111DIA
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