EBK WEBASSIGN FOR ZUMDAHL'S CHEMICAL PR
8th Edition
ISBN: 9780357119099
Author: ZUMDAHL
Publisher: VST
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Chapter 21, Problem 20E
Interpretation Introduction
Interpretation:The reason for the given statement needs to be determined.
Concept introduction:
The name of chemical compound is used to represent the name of each sub compound and its elements present in the compound.
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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 21 Solutions
EBK WEBASSIGN FOR ZUMDAHL'S CHEMICAL PR
Ch. 21 - Prob. 1ECh. 21 - Prob. 2ECh. 21 - Why are cyclopropane and cyclobutane so reactive?Ch. 21 - Prob. 4ECh. 21 - Prob. 5ECh. 21 - Prob. 6ECh. 21 - Prob. 7ECh. 21 - Name the five structural isomers of C6H14 .Ch. 21 - Draw the structural formula for each of the...Ch. 21 - Prob. 10E
Ch. 21 - Prob. 11ECh. 21 - Name each of the following cyclic alkanes, and...Ch. 21 - Prob. 13ECh. 21 - Prob. 14ECh. 21 - Prob. 15ECh. 21 - Prob. 16ECh. 21 - Prob. 17ECh. 21 - Prob. 18ECh. 21 - Prob. 19ECh. 21 - Prob. 20ECh. 21 - Prob. 21ECh. 21 - Prob. 22ECh. 21 - Prob. 23ECh. 21 - Prob. 24ECh. 21 - Prob. 25ECh. 21 - Prob. 26ECh. 21 - Prob. 27ECh. 21 - Prob. 28ECh. 21 - Prob. 29ECh. 21 - Prob. 30ECh. 21 - Name the following compounds.Ch. 21 - Prob. 32ECh. 21 - Prob. 33ECh. 21 - Prob. 34ECh. 21 - Prob. 35ECh. 21 - Prob. 36ECh. 21 - Prob. 37ECh. 21 - Prob. 38ECh. 21 - Prob. 39ECh. 21 - Prob. 40ECh. 21 - Prob. 41ECh. 21 - Draw structural formulas for each of the following...Ch. 21 - Prob. 43ECh. 21 - Prob. 44ECh. 21 - Prob. 45ECh. 21 - Prob. 46ECh. 21 - Prob. 47ECh. 21 - Prob. 48ECh. 21 - Prob. 49ECh. 21 - Prob. 50ECh. 21 - Prob. 51ECh. 21 - Prob. 52ECh. 21 - Prob. 53ECh. 21 - Prob. 54ECh. 21 - Prob. 55ECh. 21 - Prob. 56ECh. 21 - Prob. 57ECh. 21 - Prob. 58ECh. 21 - Prob. 59ECh. 21 - Give an example reaction that would yield the...Ch. 21 - Prob. 61ECh. 21 - Prob. 62ECh. 21 - Prob. 63ECh. 21 - Prob. 64ECh. 21 - Prob. 65ECh. 21 - Prob. 66ECh. 21 - Prob. 67ECh. 21 - Prob. 68ECh. 21 - Prob. 69ECh. 21 - Prob. 70ECh. 21 - Prob. 71ECh. 21 - Prob. 72ECh. 21 - Prob. 73ECh. 21 - Prob. 74ECh. 21 - Prob. 75ECh. 21 - Prob. 76ECh. 21 - Prob. 77ECh. 21 - Prob. 78ECh. 21 - Prob. 79ECh. 21 - Prob. 80ECh. 21 - Prob. 81ECh. 21 - Prob. 82ECh. 21 - Prob. 83ECh. 21 - Prob. 84ECh. 21 - Prob. 85ECh. 21 - Prob. 86ECh. 21 - Prob. 87ECh. 21 - Prob. 88ECh. 21 - Prob. 89ECh. 21 - Prob. 90ECh. 21 - Prob. 91ECh. 21 - Prob. 92ECh. 21 - Prob. 93ECh. 21 - Prob. 94ECh. 21 - Prob. 95ECh. 21 - Draw the structures of the tripeptides gly-ala-ser...Ch. 21 - Prob. 97ECh. 21 - Prob. 98ECh. 21 - What types of interactions can occur between the...Ch. 21 - Prob. 100ECh. 21 - Prob. 101ECh. 21 - Prob. 102ECh. 21 - Prob. 103ECh. 21 - Prob. 104ECh. 21 - Prob. 105ECh. 21 - Prob. 106ECh. 21 - Prob. 107ECh. 21 - Prob. 108ECh. 21 - Prob. 109ECh. 21 - Prob. 110ECh. 21 - Prob. 111ECh. 21 - Prob. 112ECh. 21 - Prob. 113ECh. 21 - Prob. 114ECh. 21 - Prob. 115ECh. 21 - Prob. 116ECh. 21 - Prob. 117ECh. 21 - Prob. 118ECh. 21 - Prob. 119ECh. 21 - Prob. 120ECh. 21 - Prob. 121ECh. 21 - Prob. 122ECh. 21 - Prob. 123ECh. 21 - Prob. 124ECh. 21 - Prob. 125ECh. 21 - Prob. 126ECh. 21 - Prob. 127AECh. 21 - Prob. 128AECh. 21 - Prob. 129AECh. 21 - Prob. 130AECh. 21 - Prob. 131AECh. 21 - Prob. 132AECh. 21 - Prob. 133AECh. 21 - Prob. 134AECh. 21 - Prob. 135AECh. 21 - Prob. 136AECh. 21 - Prob. 137AECh. 21 - Prob. 138AECh. 21 - Prob. 139AECh. 21 - Prob. 140AECh. 21 - Prob. 141AECh. 21 - Prob. 142AECh. 21 - Prob. 143AECh. 21 - Prob. 144AECh. 21 - Prob. 145AECh. 21 - Prob. 146AECh. 21 - Prob. 147AECh. 21 - Prob. 148AECh. 21 - Prob. 149AECh. 21 - Prob. 150AECh. 21 - Prob. 151AECh. 21 - Prob. 152AECh. 21 - Prob. 153AECh. 21 - Prob. 154AECh. 21 - Prob. 155AECh. 21 - Prob. 156AECh. 21 - Prob. 157AECh. 21 - Prob. 158AECh. 21 - Prob. 159AECh. 21 - Prob. 160AECh. 21 - Prob. 161AECh. 21 - Name each of the following cyclic alkanes.Ch. 21 - Prob. 163AECh. 21 - Prob. 164AECh. 21 - Prob. 165AECh. 21 - Prob. 166AECh. 21 - Prob. 167AECh. 21 - Prob. 168AECh. 21 - Prob. 169CPCh. 21 - Prob. 170CPCh. 21 - Prob. 171CPCh. 21 - Prob. 172CPCh. 21 - Prob. 173CPCh. 21 - Prob. 174CP
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