Bundle: Introduction to General, Organic and Biochemistry, 11th + OWLv2, 4 terms (24 months) Printed Access Card
11th Edition
ISBN: 9781305705159
Author: Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Publisher: Cengage Learning
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Question
Chapter 5, Problem 5.101P
Interpretation Introduction
Interpretation:
The compound with highest boiling point should be identified.
Concept Introduction:
The boiling point of a liquid is defined as the temperature when vapor pressure of liquid is equal to the atmospheric pressure. It is depending on atmospheric pressure and the strength of intermolecular bonding. Stronger the intermolecular bonding, more will be the boiling point.
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(a
4 shows scanning electron microscope (SEM) images of extruded
actions of packing bed for two capillary columns of different diameters,
al 750 (bottom image) and b) 30-μm-i.d. Both columns are packed with the
same stationary phase, spherical particles with 1-um diameter.
A) When the columns were prepared, the figure shows that the column with
the larger diameter has more packing irregularities. Explain this observation.
B) Predict what affect this should have on band broadening and discuss your
prediction using the van Deemter terms.
C) Does this figure support your explanations in application question 33?
Explain why or why not and make any changes in your answers in light of
this figure.
Figure 4 SEM images of
sections of packed columns
for a) 750 and b) 30-um-i.d.
capillary columns.³
fcrip
= ↓ bandwidth Il temp
32. What impact (increase, decrease, or no change) does each of the following conditions have on the individual
components of the van Deemter equation and consequently, band broadening?
Increase temperature
Longer column
Using a gas mobile phase
instead of liquid
Smaller particle stationary phase
Multiple Paths
Diffusion
Mass Transfer
34. Figure 3 shows Van Deemter plots for a solute molecule using different column inner diameters (i.d.).
A) Predict whether decreasing the column inner diameters increase or decrease bandwidth.
B) Predict which van Deemter equation coefficient (A, B, or C) has the greatest effect on increasing or
decreasing bandwidth as a function of i.d. and justify your answer.
Figure 3 Van Deemter plots for hydroquinone using different column inner diameters (i.d. in μm). The data was
obtained from liquid chromatography experiments using fused-silica capillary columns packed with 1.0-μm particles.
35
20
H(um)
큰 20
15
90
0+
1500
100
75
550
01
02
594
05
μ(cm/sec)
30
15
10
Chapter 5 Solutions
Bundle: Introduction to General, Organic and Biochemistry, 11th + OWLv2, 4 terms (24 months) Printed Access Card
Ch. 5.3 - Prob. 5.1PCh. 5.3 - Prob. 5.2PCh. 5.3 - Prob. 5.3PCh. 5.4 - Prob. 5.4PCh. 5.4 - Prob. 5.5PCh. 5.4 - Prob. 5.6PCh. 5.5 - Prob. 5.7PCh. 5.7 - Problem 5-8 Will the molecules in each set form a...Ch. 5.10 - Prob. 5.9PCh. 5.10 - Prob. 5.10P
Ch. 5.10 - Prob. 5.11PCh. 5 - Prob. 5.12PCh. 5 - Prob. 5.13PCh. 5 - Prob. 5.14PCh. 5 - Prob. 5.15PCh. 5 - 5-16 Answer true or false. (a) For a sample of gas...Ch. 5 - Prob. 5.17PCh. 5 - Prob. 5.18PCh. 5 - Prob. 5.19PCh. 5 - Prob. 5.20PCh. 5 - Prob. 5.21PCh. 5 - Prob. 5.22PCh. 5 - Prob. 5.23PCh. 5 - Prob. 5.24PCh. 5 - 5-25 A gas in a bulb as in Figure 5-3 registers a...Ch. 5 - Prob. 5.26PCh. 5 - 5-27 A sample of the inhalation anesthetic gas...Ch. 5 - Prob. 5.28PCh. 5 - Prob. 5.29PCh. 5 - Prob. 5.30PCh. 5 - 5-31 A balloon used for atmospheric research has a...Ch. 5 - Prob. 5.32PCh. 5 - 5-33 A certain quantity of helium gas is at a...Ch. 5 - 5-34 A sample of 30.0 mL of krypton gas, Kr, is at...Ch. 5 - 5-35 A 26.4-mL sample of ethylene gas, C2H4, has a...Ch. 5 - Prob. 5.36PCh. 5 - 5-37 A sample of a gas at 77°C and 1.33 atm...Ch. 5 - 5-38 What is the volume in liters occupied by 1.21...Ch. 5 - 5-39 An 8.00-g sample of a gas occupies 22.4 L at...Ch. 5 - Prob. 5.40PCh. 5 - 5-41 Does the density of a gas increase, decrease,...Ch. 5 - Prob. 5.42PCh. 5 - Prob. 5.43PCh. 5 - Prob. 5.44PCh. 5 - Prob. 5.45PCh. 5 - 5-46 Calculate the molar mass of a gas if 3.30 g...Ch. 5 - Prob. 5.47PCh. 5 - Prob. 5.48PCh. 5 - Prob. 5.49PCh. 5 - 5-50 How many molecules of CO are in 100. L of CO...Ch. 5 - Prob. 5.51PCh. 5 - Prob. 5.52PCh. 5 - Prob. 5.53PCh. 5 - 5-54 Automobile air bags are inflated by nitrogen...Ch. 5 - Prob. 5.55PCh. 5 - 5-56 The three main components of dry air and the...Ch. 5 - Prob. 5.57PCh. 5 - Prob. 5.58PCh. 5 - Prob. 5.59PCh. 5 - Prob. 5.60PCh. 5 - Prob. 5.61PCh. 5 - Prob. 5.62PCh. 5 - Prob. 5.63PCh. 5 - Prob. 5.64PCh. 5 - Prob. 5.65PCh. 5 - Prob. 5.66PCh. 5 - Prob. 5.67PCh. 5 - Prob. 5.68PCh. 5 - Prob. 5.69PCh. 5 - Prob. 5.70PCh. 5 - Prob. 5.71PCh. 5 - Prob. 5.72PCh. 5 - Prob. 5.73PCh. 5 - Prob. 5.74PCh. 5 - 5-75 The heat of vaporization of liquid Freon-12,...Ch. 5 - Prob. 5.76PCh. 5 - Prob. 5.77PCh. 5 - Prob. 5.78PCh. 5 - Prob. 5.79PCh. 5 - Prob. 5.80PCh. 5 - 5-81 Compare the number of calories absorbed when...Ch. 5 - Prob. 5.82PCh. 5 - Prob. 5.83PCh. 5 - Prob. 5.84PCh. 5 - Prob. 5.85PCh. 5 - 5-86 Using the phase diagram of water (Figure...Ch. 5 - Prob. 5.87PCh. 5 - Prob. 5.88PCh. 5 - 5-89 (Chemical Connections 5C) In a...Ch. 5 - Prob. 5.90PCh. 5 - Prob. 5.91PCh. 5 - Prob. 5.92PCh. 5 - Prob. 5.93PCh. 5 - Prob. 5.94PCh. 5 - Prob. 5.95PCh. 5 - Prob. 5.96PCh. 5 - Prob. 5.97PCh. 5 - Prob. 5.98PCh. 5 - Prob. 5.99PCh. 5 - Prob. 5.100PCh. 5 - Prob. 5.101PCh. 5 - Prob. 5.102PCh. 5 - Prob. 5.103PCh. 5 - Prob. 5.104PCh. 5 - Prob. 5.105PCh. 5 - 5-106 The normal boiling point of hexane, C6H14,...Ch. 5 - 5-107 If 60.0 g of NH3 occupies 35.1 L under a...Ch. 5 - Prob. 5.108PCh. 5 - Prob. 5.109PCh. 5 - Prob. 5.110PCh. 5 - 5-111 Diving, particularly SCUBA (Self-Contained...Ch. 5 - Prob. 5.112PCh. 5 - 5-113 Ammonia and gaseous hydrogen chloride react...Ch. 5 - 5-114 Carbon dioxide gas, saturated with water...Ch. 5 - 5-115 Ammonium nitrite decomposes upon heating to...Ch. 5 - Prob. 5.116PCh. 5 - Prob. 5.117PCh. 5 - 5-118 Isooctane, which has a chemical formula...Ch. 5 - Prob. 5.119PCh. 5 - Prob. 5.120P
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