EBK CHEMISTRY
4th Edition
ISBN: 8220102797864
Author: Burdge
Publisher: YUZU
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Chapter 5, Problem 12QP
Interpretation Introduction
Interpretation:
The definition of state function and its examples are to be given.
Concept introduction:
A state function is a quantity of
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Recent advancements in liquid chromatography include the development of ultrahigh pressure liquid
chromatography (UHPLC) and an increased use of capillary columns that had previously only been used
with gas chromatography. Both of these advances have made the development of portable LC systems
possible. For example, Axcend Corp. makes a portable system that uses a capillary column with an
internal diameter of 150-μm-that is packed with 1.7-um stationary phase particles. In contrast, a traditional
LC column has a 4.6 mm internal diameter and utilizes 5-um stationary phase particles.
a) Explain one advantage that is afforded by the use of a capillary column in liquid chromatographic
separation. Explain one disadvantage of capillary columns.
b) Explain how the use of smaller stationary phase particles can improve the resolution of a separation.
Include any relevant equations that support your explanation.
c) A scientist at Rowan University is using
the Axcend LC to conduct analyses of F…
This paper describes the use of fullerene molecules, also known as buckyballs, as a stationary phase for
liquid chromatography. The performance of the fullerene-modified stationary phase (FMS) is compared to
that of a more common C18 stationary phase and to two other carbon-based stationary phases, PGC and
COZ.
A.
10A
OM
B.
-
Figure 1. Idealized drawing of the
cross-section of a pore inside a silica
particle, showing the relative densities
of aminopropylsilyl (red/green) and
fullerene (blue) groups: (A) full cross-
section; (B) detailed view of covalent
bonding of fullerene to the silica
surface. Surface densities of silyl and
fullerene groups were inferred from
elemental composition results obtained
at each stage of the synthesis (see Table
1).
Absorbance (mAU, 220 nm)
700
600
500
400
300
200
100
a. Define selectivity, a, with words and an equation.
b. Explain how the choice of stationary phase affects selectivity.
c. Calculate the resolution of the nitrobenzene and toluene peaks in…
Normalized Intensity (a. u.)
0.5
1.0
A 3D-printed GC column (shown below) was created for use with "micro" gas chromatography
applications. To prove its utility, it was used to separate a mixture of alkanes (C9-C18, C22, C24). For the
separation shown below, the column temperature was ramped from 40 °C to 250 °C at a rate of 30 °C per
minute.
(a)
9 10
=
1 mm
12
13
15
22
0.0
0
100
200
300
400
Time (sec)
a) What detector would you use for this analysis? Justify your selection.
b) Explain how the chromatogram would change if the separation was run isothermally.
c) Explain how the chromatogram would change if the temperature ramp were increased to 50 °C per
minute.
Chapter 5 Solutions
EBK CHEMISTRY
Ch. 5.1 - Practice Problem ATTEMPT
(a) Calculate the energy...Ch. 5.1 - Practice Problem BUILD
(a) Calculate the velocity...Ch. 5.1 - Prob. 1PPCCh. 5.1 - Prob. 1CPCh. 5.1 - How much greater is the electrostatic potential...Ch. 5.1 - Prob. 3CPCh. 5.1 - 5.1.4 The label on packaged food indicates that it...Ch. 5.1 - 5.1.5 Arrange the following pairs of charged...Ch. 5.1 - Prob. 6CPCh. 5.2 - Practice Problem ATTEMPT
Calculate the change in...
Ch. 5.2 - Practice ProblemBUILD Calculate the magnitude of q...Ch. 5.2 - Prob. 1PPCCh. 5.2 - Calculate the overall change in internal energy...Ch. 5.2 - Calculate w, and determine whether work is done by...Ch. 5.2 - Prob. 3CPCh. 5.2 - Prob. 4CPCh. 5.3 - Prob. 1PPACh. 5.3 - Prob. 1PPBCh. 5.3 - Prob. 1PPCCh. 5.3 - Given the thermochemical equation: H 2 ( g ) + Br...Ch. 5.3 - Given the thermochemical equation: 2Cu 2 O ( s ) →...Ch. 5.4 - Prob. 1PPACh. 5.4 - Prob. 1PPBCh. 5.4 - Prob. 1PPCCh. 5.4 - Prob. 1CPCh. 5.4 - Prob. 2CPCh. 5.4 - Prob. 3CPCh. 5.4 - 5.4.4 Quantities of 50.0 mL of 1.00 M HCl and 50.0...Ch. 5.5 - Prob. 1PPACh. 5.5 - Prob. 1PPBCh. 5.5 - Prob. 1PPCCh. 5.5 - Prob. 1CPCh. 5.5 - Prob. 2CPCh. 5.5 - 5.5.3 Each diagram shows a systems before and...Ch. 5.5 - Prob. 4CPCh. 5.6 - Prob. 1PPACh. 5.6 - Prob. 1PPBCh. 5.6 - Prob. 1PPCCh. 5.6 - Prob. 1CPCh. 5.6 - Prob. 2CPCh. 5.6 - Prob. 3CPCh. 5.6 - Prob. 4CPCh. 5.7 - Prob. 1PPACh. 5.7 - Prob. 1PPBCh. 5.7 - Prob. 1PPCCh. 5.8 - Prob. 1PPACh. 5.8 - Prob. 1PPBCh. 5.8 - Practice ProblemCONCEPTUALIZE The diagrams...Ch. 5.9 - Practice ProblemATTEMPT Use the following data to...Ch. 5.9 - Prob. 1PPBCh. 5.9 - Prob. 1PPCCh. 5 - Using data from Appendix 2, calculate the standard...Ch. 5 - Prob. 2KSPCh. 5 - Prob. 3KSPCh. 5 - Using only whole-number coefficients, the...Ch. 5 - Prob. 1QPCh. 5 - Prob. 2QPCh. 5 - Prob. 3QPCh. 5 - 5.4 A truck initially trawling at 60 km/h is...Ch. 5 - These are various forms of energy: chemical, heat,...Ch. 5 - 5.6 Define these terms: thermochemistry,...Ch. 5 - 5.7 Stoichiometry is based on the law of...Ch. 5 - Prob. 8QPCh. 5 - Decomposition reactions are usually endothermic,...Ch. 5 - Prob. 10QPCh. 5 - Prob. 11QPCh. 5 - Prob. 12QPCh. 5 - Prob. 13QPCh. 5 - Prob. 14QPCh. 5 - Prob. 15QPCh. 5 - Prob. 16QPCh. 5 - Prob. 17QPCh. 5 - Use the following diagrams for Problems 5.17 and...Ch. 5 - Consider these changes. (a) Hg ( t ) → Hg ( g )...Ch. 5 - Prob. 20QPCh. 5 - Prob. 21QPCh. 5 - 5.22 Explain the meaning of this thermochemical...Ch. 5 - Consider this reaction: 2 CH 3 OH ( l ) + 3 O 2 (...Ch. 5 - Prob. 24QPCh. 5 - Prob. 25QPCh. 5 - Prob. 26QPCh. 5 - Prob. 27QPCh. 5 - Prob. 28QPCh. 5 - Prob. 29QPCh. 5 - Prob. 30QPCh. 5 - Prob. 31QPCh. 5 - For most biological processes, the changes in...Ch. 5 - Prob. 33QPCh. 5 - 5.34 Define calorimetry and describe two commonly...Ch. 5 - A 6.22-kg piece of copper metal is heated from 20...Ch. 5 - Prob. 36QPCh. 5 - Prob. 37QPCh. 5 - A 0.1375-g sample of solid magnesium is burned in...Ch. 5 - A quantity of 2 .00 × 10 2 mL of 0 .862 M HCl is...Ch. 5 - 5.40 A 50.75 g sample of water at is added to a...Ch. 5 - A 25.95-g sample of methanol at 35 .6°C is added...Ch. 5 - Prob. 42QPCh. 5 - Prob. 43QPCh. 5 - Consider the following data: Metal Al Cu Mass(g)...Ch. 5 - Prob. 45QPCh. 5 - Prob. 46QPCh. 5 - Prob. 47QPCh. 5 - Prob. 48QPCh. 5 - Prob. 49QPCh. 5 - Prob. 50QPCh. 5 - Prob. 51QPCh. 5 - Prob. 52QPCh. 5 - Prob. 53QPCh. 5 - Prob. 54QPCh. 5 - 5.55 Each diagram shows a system before and after...Ch. 5 - Prob. 56QPCh. 5 - 5.57 Determine the value of for the following...Ch. 5 - Prob. 58QPCh. 5 - Prob. 59QPCh. 5 - Prob. 60QPCh. 5 - Prob. 61QPCh. 5 - Prob. 62QPCh. 5 - Prob. 63QPCh. 5 - Prob. 64QPCh. 5 - Prob. 65QPCh. 5 - Prob. 66QPCh. 5 - Prob. 67QPCh. 5 - Prob. 68QPCh. 5 - Prob. 69QPCh. 5 - Prob. 70QPCh. 5 - Prob. 71QPCh. 5 - Prob. 72QPCh. 5 - Prob. 73QPCh. 5 - Prob. 74QPCh. 5 - Pentaborane - 9 ( B 5 H 9 ) is a colorless, highly...Ch. 5 - Prob. 76QPCh. 5 - Prob. 77QPCh. 5 - Prob. 78QPCh. 5 - Prob. 79QPCh. 5 - Prob. 80QPCh. 5 - Prob. 81APCh. 5 - Prob. 82APCh. 5 - Prob. 83APCh. 5 - Prob. 84APCh. 5 - Prob. 85APCh. 5 - Prob. 86APCh. 5 - Prob. 87APCh. 5 - Prob. 88APCh. 5 - Ethanol ( C 2 H 5 OH ) and gasoline (assumed to be...Ch. 5 - Prob. 90APCh. 5 - The heat of vaporization of a liquid ( Δ H vap )...Ch. 5 - Prob. 92APCh. 5 - Prob. 93APCh. 5 - Prob. 94APCh. 5 - Prob. 95APCh. 5 - Prob. 96APCh. 5 - 5.97 The enthalpy of combustion of benzoic add is...Ch. 5 - 5.98 At , the standard enthalpy of formation of...Ch. 5 - From the enthalpy of formation for CO, and the...Ch. 5 - In the nineteenth century, two scientists named...Ch. 5 - Prob. 101APCh. 5 - Prob. 102APCh. 5 - Prob. 103APCh. 5 - A quantity of 85 .0 mL of 0 .600 M HCl is mixed...Ch. 5 - Prob. 105APCh. 5 - Prob. 106APCh. 5 - A 4.117-g impure sample of glucose (C 4 H 12 O 6 )...Ch. 5 - Prob. 108APCh. 5 - In a constant-pressure calorimetry experiment, a...Ch. 5 - Prob. 110APCh. 5 - Give an example for each of the following...Ch. 5 - Prob. 112APCh. 5 - Prob. 113APCh. 5 - 5.114 A 3.52-g sample of ammonium nitrate was...Ch. 5 - 5.115 A quantity of is mixed with in a...Ch. 5 - Prob. 116APCh. 5 - Prob. 117APCh. 5 - Prob. 118APCh. 5 - Prob. 119APCh. 5 - Prob. 120APCh. 5 - 5.121 A gas company in Massachusetts charges 27...Ch. 5 - Prob. 122APCh. 5 - For reactions in condensed phases ( liquids and...Ch. 5 - Prob. 124APCh. 5 - Prob. 125APCh. 5 - The so-called hydrogen economy is based on...Ch. 5 - Prob. 127APCh. 5 - 5.128 Calculate the standard enthalpy change for...Ch. 5 - Prob. 129APCh. 5 - Prob. 130APCh. 5 - Why are cold, damp air and hot, humid air more...Ch. 5 - A woman expends 95 kJ of energy walking a...Ch. 5 - The carbon dioxide exhaled by sailors in a...Ch. 5 - Prob. 134APCh. 5 - Acetylene ( C 2 H 2 ) can be made by combining...Ch. 5 - (a) A person drinks four glasses of cold water ( 3...Ch. 5 - Both glucose and fructose are simple sugars with...Ch. 5 - Prob. 138APCh. 5 - Prob. 139APCh. 5 - Prob. 140APCh. 5 - Prob. 141APCh. 5 - Prob. 142APCh. 5 - 5.143 Hydrazine decomposes to form ammonia and...Ch. 5 - Prob. 144APCh. 5 - Prob. 145APCh. 5 - Prob. 1SEPPCh. 5 - What is the heat capacity ( C v ) of the...Ch. 5 - What is the energy content of the food? a) 22 .8...Ch. 5 - 4. What would be the effect on the result if the...
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