Introduction To General, Organic, And Biochemistry
12th Edition
ISBN: 9781337571357
Author: Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Publisher: Cengage Learning
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Chapter 11, Problem 67P
Interpretation Introduction
Interpretation: The possible 2 chair conformations for the given molecule needs to be drawn. The most stable conformation needs to be identified.
Concept introduction:There are two basic principles that needs to be followed to convert a cyclohexane to its chair conformation:
The chair conformations are more stable.
The substituents present on the chair conformers always prefer to occupy equatorial positions. This is due to high steric hindrance of axial positions.
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Assign this HSQC Spectrum ( please editing clearly on the image)
(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
Chapter 11 Solutions
Introduction To General, Organic, And Biochemistry
Ch. 11.2 - Prob. 11.1QCCh. 11.3 - Prob. 11.2QCCh. 11.3 - Prob. 11.3QCCh. 11.4 - Problem 11-4 Write the molecular formula and IUPAC...Ch. 11.6 - Problem 11-5 Write the molecular formula and IUPAC...Ch. 11.7 - Prob. 11.6QCCh. 11.8 - Prob. 11.7QCCh. 11.9 - Prob. 11.8QCCh. 11.10 - Prob. 11.9QCCh. 11 - 11-11 Define: Hydrocarbon Alkane Saturated...
Ch. 11 - 11-12 Why is it not accurate to describe an...Ch. 11 - 11-13 What is meant by the term line-angle formula...Ch. 11 - Prob. 4PCh. 11 - Write the molecular formula for each alkane.Ch. 11 - Answer true or false. Constitutional isomers have...Ch. 11 - Which statements are true about constitutional...Ch. 11 - Prob. 8PCh. 11 - Each member of the following set of compounds is...Ch. 11 - Prob. 10PCh. 11 - 11-21 In the six following sets, which pairs of...Ch. 11 - Draw line-angle formulas for the nine...Ch. 11 - Answer true or false. The parent name of an alkane...Ch. 11 - Prob. 14PCh. 11 - Among the ingredients listed in one commercial...Ch. 11 - Prob. 16PCh. 11 - Answer true or false. Cycloalkanes are saturated...Ch. 11 - Prob. 18PCh. 11 - Prob. 19PCh. 11 - Prob. 20PCh. 11 - Prob. 21PCh. 11 - 11-32 Calculate the actual C-C-C bond angles in...Ch. 11 - Prob. 23PCh. 11 - 11-34 What structural feature of cycloalkanes...Ch. 11 - Prob. 25PCh. 11 - 11-36 Name and draw structural formulas for the...Ch. 11 - Name and draw structural formulas for the six...Ch. 11 - 11-38 Why is equatorial methylcyclohexane more...Ch. 11 - Prob. 29PCh. 11 - Consider a cyclohexane ring substituted with one...Ch. 11 - Prob. 31PCh. 11 - Prob. 32PCh. 11 - Which unbranched alkane (Table 11-4) has about the...Ch. 11 - Prob. 34PCh. 11 - Prob. 35PCh. 11 - Prob. 36PCh. 11 - Prob. 37PCh. 11 - 11-48 How are the boiling points of hydrocarbons...Ch. 11 - Answer true or false. Combustion of alkanes is an...Ch. 11 - 11-50 Write balanced equations for the combustion...Ch. 11 - The heat of combustion of methane, a component of...Ch. 11 - 11-52 Draw structural formulas for these...Ch. 11 - Prob. 43PCh. 11 - 11-54 Complete and balance the equation for the...Ch. 11 - Name and draw structural formulas for all pos...Ch. 11 - Prob. 46PCh. 11 - Prob. 47PCh. 11 - 11-58 (Chemical Connections 11A) How many rings in...Ch. 11 - Prob. 49PCh. 11 - Prob. 50PCh. 11 - Prob. 51PCh. 11 - 11-62(Chemical Connections 11C) What are Freons?...Ch. 11 - 11-63 (Chemical Connections 11C) In what way do...Ch. 11 - (Chemical Connections 11C) What are HFCs and...Ch. 11 - Prob. 55PCh. 11 - Prob. 56PCh. 11 - Prob. 57PCh. 11 - Prob. 58PCh. 11 - Which of the following compounds can exist as...Ch. 11 - Prob. 60PCh. 11 - Dodecane, C12H26, is an unbranched alkane Predict...Ch. 11 - Prob. 62PCh. 11 - Prob. 63PCh. 11 - Prob. 64PCh. 11 - As stated in Section 11-9, the wax found in apple...Ch. 11 - Prob. 66PCh. 11 - Prob. 67P
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