
Connect 1-Semester Access Card for General, Organic, and Biochemistry
9th Edition
ISBN: 9781259815096
Author: Katherine J Denniston, Joseph J Topping, Dr Danae Quirk Dorr
Publisher: McGraw-Hill Education
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Chapter 1, Problem 1.118QP
(a)
Interpretation Introduction
Interpretation:
The temperature of
(b)
Interpretation Introduction
Interpretation:
The temperature of
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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 1 Solutions
Connect 1-Semester Access Card for General, Organic, and Biochemistry
Ch. 1.1 - Prob. 1.1PPCh. 1.2 - Is each of the following materials a pure...Ch. 1.2 - Intravenous therapy may be used to introduce a...Ch. 1.2 - Cloudy urine can be a symptom of a bladder...Ch. 1.2 - Classify each of the following as either a...Ch. 1.2 - Prob. 1.3QCh. 1.2 - Prob. 1.4QCh. 1.2 - Prob. 1.4PPCh. 1.2 - Label each property as intensive or extensive:
the...Ch. 1.2 - Label each property as intensive or extensive:
the...
Ch. 1.4 - How many significant figures are contained in each...Ch. 1.4 - Prob. 1.8QCh. 1.4 - Prob. 1.9QCh. 1.4 - Prob. 1.10QCh. 1.4 - Prob. 1.11QCh. 1.4 - Prob. 1.12QCh. 1.4 - Prob. 1.13QCh. 1.4 - Prob. 1.14QCh. 1.4 - Prob. 1.5PPCh. 1.4 - Prob. 1.15QCh. 1.4 - Prob. 1.16QCh. 1.4 - Prob. 1.6PPCh. 1.4 - Prob. 1.17QCh. 1.4 - Prob. 1.18QCh. 1.5 - Convert 360 ft to mi.
Ch. 1.5 - Convert:
750 cm to mm
1.5 × 108 μL to cL
0.00055...Ch. 1.5 - Convert:
0.50 in to m
0.75 qt to L
56.8 g to...Ch. 1.5 - Convert:
1.5 cm2 to m2
3.6 m2 to cm2
Ch. 1.5 - Convert 0.791 g/mL to kg/L.
Ch. 1.6 - The freezing temperature of water is 32°F....Ch. 1.6 - Prob. 1.19QCh. 1.6 - Prob. 1.20QCh. 1.6 - Prob. 1.13PPCh. 1.6 - Prob. 1.14PPCh. 1.6 - Prob. 1.15PPCh. 1.6 - Calculate the volume, in mL, of 10.0 g of a saline...Ch. 1 - Define chemistry and explain how burning wood is...Ch. 1 - Prob. 1.22QPCh. 1 - Why is experimentation an important part of the...Ch. 1 - Prob. 1.24QPCh. 1 - What data would be required to estimate the total...Ch. 1 - What data would be required to estimate the mass...Ch. 1 - What are the characteristics of methane emphasized...Ch. 1 - Discuss the difference between hypothesis and...Ch. 1 - Discuss the difference between theory and...Ch. 1 - We use aspects of the scientific method in our...Ch. 1 - Experimentation has shown that stem cell research...Ch. 1 - Observed increases in global temperatures are...Ch. 1 - Prob. 1.35QPCh. 1 - List the three states of matter.
Ch. 1 - Explain the differences among the three states of...Ch. 1 - Prob. 1.39QPCh. 1 - Prob. 1.40QPCh. 1 - Prob. 1.41QPCh. 1 - Prob. 1.42QPCh. 1 - Prob. 1.43QPCh. 1 - Prob. 1.44QPCh. 1 - Explain the difference between chemical properties...Ch. 1 - List the differences between chemical changes and...Ch. 1 - Label each of the following as pertaining to...Ch. 1 - Prob. 1.48QPCh. 1 - Prob. 1.49QPCh. 1 - Prob. 1.50QPCh. 1 - Label each of the following as either a physical...Ch. 1 - Prob. 1.52QPCh. 1 - Label each of the following properties of sodium...Ch. 1 - Prob. 1.54QPCh. 1 - Label each of the following as either a pure...Ch. 1 - Prob. 1.56QPCh. 1 - Label each of the following as either a...Ch. 1 - Prob. 1.58QPCh. 1 - Prob. 1.59QPCh. 1 - Prob. 1.60QPCh. 1 - Prob. 1.61QPCh. 1 - Mass is the measure of what property of matter?
Ch. 1 - Explain the difference between mass and weight.
Ch. 1 - Prob. 1.65QPCh. 1 - Prob. 1.66QPCh. 1 - How is the metric unit of L defined?
Ch. 1 - What English unit of volume is similar to a L?
Ch. 1 - Rank the following from shortest to longest...Ch. 1 - Rank the following from least to greatest mass.
Ch. 1 - Determine the temperature reading of the following...Ch. 1 - Prob. 1.72QPCh. 1 - Prob. 1.73QPCh. 1 - Prob. 1.74QPCh. 1 - How many significant figures are represented in...Ch. 1 - Prob. 1.76QPCh. 1 - Round the following numbers to three significant...Ch. 1 - Round the following numbers to three significant...Ch. 1 - Perform each of the following operations,...Ch. 1 - Prob. 1.80QPCh. 1 - Prob. 1.81QPCh. 1 - Prob. 1.82QPCh. 1 - Prob. 1.83QPCh. 1 - Prob. 1.84QPCh. 1 - Prob. 1.85QPCh. 1 - Prob. 1.86QPCh. 1 - Give the abbreviation and meaning of the following...Ch. 1 - Fill in the blank with the missing abbreviation...Ch. 1 - Write the two conversion factors that can be...Ch. 1 - Write the two conversion factors that can be...Ch. 1 - Prob. 1.91QPCh. 1 - Prob. 1.92QPCh. 1 - Prob. 1.93QPCh. 1 - Prob. 1.94QPCh. 1 - Convert 1.50 × 104 μg to mg.
Ch. 1 - Prob. 1.96QPCh. 1 - A typical office has 144 ft2 of floor space....Ch. 1 - Prob. 1.98QPCh. 1 - Prob. 1.99QPCh. 1 - Prob. 1.100QPCh. 1 - Prob. 1.101QPCh. 1 - Prob. 1.102QPCh. 1 - Prob. 1.103QPCh. 1 - Prob. 1.104QPCh. 1 - Which mass is smaller: 5.0 mg or 5.0 μg?
Ch. 1 - Which volume is smaller: 1.0 L or 1.0 qt?
Ch. 1 - Prob. 1.107QPCh. 1 - Prob. 1.108QPCh. 1 - Prob. 1.109QPCh. 1 - Prob. 1.110QPCh. 1 - Prob. 1.111QPCh. 1 - Prob. 1.112QPCh. 1 - Prob. 1.113QPCh. 1 - Prob. 1.114QPCh. 1 - Convert 50.0°F to:
°C
K
Ch. 1 - The weather station posted that the low for the...Ch. 1 - The thermostat shows that the room temperature is...Ch. 1 - Convert 300.0 K to:
°C
°F
Ch. 1 - Prob. 1.119QPCh. 1 - Prob. 1.120QPCh. 1 - Calculate the density of a 3.00 × 102 g object...Ch. 1 - Calculate the density of 50.0 g of an isopropyl...Ch. 1 - What volume, in L, will 8.00 × 102 g of air occupy...Ch. 1 - Prob. 1.124QPCh. 1 - What is the mass, in g, of a piece of iron that...Ch. 1 - What is the mass of a femur (leg bone) having a...Ch. 1 - For the treatment of cystic fibrosis, it has been...Ch. 1 - You are given a piece of wood that is either...Ch. 1 - You are given three bars of metal. Each is labeled...Ch. 1 - Refer to Question 1.135. Suppose that each of the...Ch. 1 - The density of methanol at 20°C is 0.791 g/mL....Ch. 1 - The density of methanol at 20°C is 0.791 g/mL....Ch. 1 - Prob. 1.133QPCh. 1 - The specific gravity of a patient’s urine sample...Ch. 1 - The density of grain alcohol is 0.789 g/mL. Given...Ch. 1 - Prob. 1.136QPCh. 1 - The density of whole human blood in a healthy...Ch. 1 - Prob. 1.138QPCh. 1 - An instrument used to detect metals in drinking...Ch. 1 - Prob. 2CPCh. 1 - Aspirin has been recommended to minimize the...Ch. 1 - The diameter of an aluminum atom is 250 picometers...
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