Organic Chemistry: Principles and Mechanisms (Second Edition)
2nd Edition
ISBN: 9780393663556
Author: Joel Karty
Publisher: W. W. Norton & Company
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Chapter 15, Problem 15.58P
Interpretation Introduction
Interpretation:
It is to be explained why there is a difference between the
Concept introduction:
An
If Lithiumdiisopropylamide (LDA), a strong but bulky base, is used instead of NaOH, it will selectively abstract the proton attached to the least substituted alpha carbon atom of the alkyl halide. The minimum substituted alkene is the major product of this reaction.
In UV-vis spectroscopy, absorption of a photon promotes an electron from a lower-energy MO to a higher-energy MO. The
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During a spectroscopic evaluation of the several solutions of
C6H5CH=CHCCl₂ in ethanol using a 1.0 cm spectrophotometric cell, different
values of absorbance (A) were obtained, which are given in the following table:
105 x conc.
mol dm-3
A
time
min
A
0.446
0.080
0
0.560
C
When the reaction of C6H5CH=CHCCl₂ with C₂H5O in an ethanolic medium is
followed spectroscopically at a convenient wavelength (2), the following
results are found:
0.812
0.145
40
0.283
1.335
1.711
0.240 0.305
80
0.217
120
2.105
0.378
0.168
140
0.149
The values of ε at λ and the rate constant for that reaction are:
a.
ε = 1.79x10-6 dm³ mol-¹ cm-¹ and k = 0.034 dm³ mol-¹ min-¹
b. ε = 1.79×104 dm³ mol-¹ cm-¹ and k = 0.034 dm³ mol-¹ min-¹
c. ε = 1.79x10-6 dm³ mol-¹ cm-1 and k = 8.9x10-³ dm³ mol-¹ min-¹
d. ε = 1.79×104 dm³ mol-¹ cm-¹ and k = 8.9x10-³ dm³ mol-¹ min¯¹
Unfortunately, carbon monoxide was not a common molecule when hemoglobin evolved,
and the binding site does not distinguish between Oz and Co. When carbon monoxide is
present, it can bind to some of the available hemoglobin sites, which prevents the
hemoglobin from carrying oxygen.
Fo*
Fe*
Fe*
B. CO binds at an absorption site with energy €co = -3.45 × 10-20 J. Suppose there is a 1
to 100 ratio of CO to O2 present in the blood. For simplicity's sake, assume there are now
100 Oz molecules available to bind.
1. What are the possible states now, and what are their multiplicities?
Specific absorbance is the absorbance of a 1% solution of a given substance. The specific
absorbance can be calculated by:
A
1%
ст
C(i %
,
For the identification of a substance, 0.0482 g of substance has been weighed, which has been
dissolved in 50.00 ml of demineralized water. Thereafter, 50.0 µl of this solution has been
diluted to 50.00 ml. a UV-wise analysis (A = 249 nm) of this dilution gave an absorbance of 0.925.
a) Calculate the concentration of the diluted solution in% (w/v).
b) Calculate the specific absorbance of the substance.
c) Will it be possible to measure the specific absorbance directly on a 1% solution? Why / why not?
Chapter 15 Solutions
Organic Chemistry: Principles and Mechanisms (Second Edition)
Ch. 15 - Prob. 15.1PCh. 15 - Prob. 15.2PCh. 15 - Prob. 15.3PCh. 15 - Prob. 15.4PCh. 15 - Prob. 15.5PCh. 15 - Prob. 15.6PCh. 15 - Prob. 15.7PCh. 15 - Prob. 15.8PCh. 15 - Prob. 15.9PCh. 15 - Prob. 15.10P
Ch. 15 - Prob. 15.11PCh. 15 - Prob. 15.12PCh. 15 - Prob. 15.13PCh. 15 - Prob. 15.14PCh. 15 - Prob. 15.15PCh. 15 - Prob. 15.16PCh. 15 - Prob. 15.17PCh. 15 - Prob. 15.18PCh. 15 - Prob. 15.19PCh. 15 - Prob. 15.20PCh. 15 - Prob. 15.21PCh. 15 - Prob. 15.22PCh. 15 - Prob. 15.23PCh. 15 - Prob. 15.24PCh. 15 - Prob. 15.25PCh. 15 - Prob. 15.26PCh. 15 - Prob. 15.27PCh. 15 - Prob. 15.28PCh. 15 - Prob. 15.29PCh. 15 - Prob. 15.30PCh. 15 - Prob. 15.31PCh. 15 - Prob. 15.32PCh. 15 - Prob. 15.33PCh. 15 - Prob. 15.34PCh. 15 - Prob. 15.35PCh. 15 - Prob. 15.36PCh. 15 - Prob. 15.37PCh. 15 - Prob. 15.38PCh. 15 - Prob. 15.39PCh. 15 - Prob. 15.40PCh. 15 - Prob. 15.41PCh. 15 - Prob. 15.42PCh. 15 - Prob. 15.43PCh. 15 - Prob. 15.44PCh. 15 - Prob. 15.45PCh. 15 - Prob. 15.46PCh. 15 - Prob. 15.47PCh. 15 - Prob. 15.48PCh. 15 - Prob. 15.49PCh. 15 - Prob. 15.50PCh. 15 - Prob. 15.51PCh. 15 - Prob. 15.52PCh. 15 - Prob. 15.53PCh. 15 - Prob. 15.54PCh. 15 - Prob. 15.55PCh. 15 - Prob. 15.56PCh. 15 - Prob. 15.57PCh. 15 - Prob. 15.58PCh. 15 - Prob. 15.59PCh. 15 - Prob. 15.60PCh. 15 - Prob. 15.61PCh. 15 - Prob. 15.62PCh. 15 - Prob. 15.63PCh. 15 - Prob. 15.64PCh. 15 - Prob. 15.65PCh. 15 - Prob. 15.66PCh. 15 - Prob. 15.67PCh. 15 - Prob. 15.68PCh. 15 - Prob. 15.1YTCh. 15 - Prob. 15.2YTCh. 15 - Prob. 15.3YTCh. 15 - Prob. 15.4YTCh. 15 - Prob. 15.5YTCh. 15 - Prob. 15.6YTCh. 15 - Prob. 15.7YTCh. 15 - Prob. 15.8YTCh. 15 - Prob. 15.9YTCh. 15 - Prob. 15.10YTCh. 15 - Prob. 15.11YTCh. 15 - Prob. 15.12YTCh. 15 - Prob. 15.13YTCh. 15 - Prob. 15.14YTCh. 15 - Prob. 15.15YTCh. 15 - Prob. 15.16YTCh. 15 - Prob. 15.17YTCh. 15 - Prob. 15.18YTCh. 15 - Prob. 15.19YTCh. 15 - Prob. 15.20YTCh. 15 - Prob. 15.21YTCh. 15 - Prob. 15.22YTCh. 15 - Prob. 15.23YTCh. 15 - Prob. 15.24YTCh. 15 - Prob. 15.25YTCh. 15 - Prob. 15.26YTCh. 15 - Prob. 15.27YTCh. 15 - Prob. 15.28YTCh. 15 - Prob. 15.29YTCh. 15 - Prob. 15.30YT
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