Pushing Electrons
4th Edition
ISBN: 9781133951889
Author: Weeks, Daniel P.
Publisher: Cengage Learning
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Chapter 3, Problem 6EQ
Interpretation Introduction
Interpretation:
The leaving group in the given molecule is to be determined in order identify the positively charged and neutral fragments produced during mechanism.
Concept Introduction:
Heterolytic cleavage of sigma bond occurs under a variety of conditions. The mechanism of bond cleavage is as shown below,
The arrow in the above mechanism indicates that the sigma electrons form A-B bond are leaving A and becoming the exclusive property of B. Since the fragment A is formally losing one electron, it must become positively charged and B must become negatively charged since it gains an electron.
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(a) The following synthesis of the molecule shown in the circle has a major problem. What is this problem? (2
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1) HBr
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2) H-
NaNH2
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5) H2, Pd
(b) Starting with the molecule shown below and any other materials with two carbons or less, write out an
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2024 Fall Term (1) Organic Chemistry 1 (Lec)
CHEM 22204 02[6386] (Hunter College)
(c) Using the same starting material as in part (b) and any other materials win two carpons or less, write out
syntheses of the circled molecules shown below. More than one step is needed in each case. Indicate the
reagent(s) and the major product in all the steps in your synthesis. You may use reactions and products from
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alt
ons for
Free Response Questions
FRQ 1:
0/5
To spectrophotometrically determine the mass percent of cobalt in an ore containing cobalt and
some inert materials, solutions with known [Co?) are prepared and absorbance of each of the
solutions is measured at the wavelength of optimum absorbance. The data are used to create a
calibration plot, shown below.
0.90-
0.80-
0.70
0.60
0.50
0.40-
0.30
0.20-
0.10-
0.00-
0.005
0.010
Concentration (M)
0.015
A 0.630 g sample of the ore is completely dissolved in concentrated HNO3(aq). The mixture is diluted
with water to a final volume of 50.00 ml. Assume that all the cobalt in the ore sample is converted to
Co2+(aq).
a. What is the [Co2] in the solution if the absorbance of a sample of the solution is 0.74?
13
✗
b. Calculate the number of moles of Co2+(aq) in the 50.00 mL solution.
0.008 mols Co
Please correct answer and don't used hand raiting
Chapter 3 Solutions
Pushing Electrons
Ch. 3 - Prob. 1EQCh. 3 - Prob. 2EQCh. 3 - Prob. 3EQCh. 3 - Prob. 4EQCh. 3 - Prob. 5EQCh. 3 - Prob. 6EQCh. 3 - Here are some exercises in sigma bond breaking....Ch. 3 - Prob. 8EQCh. 3 - Prob. 9EQCh. 3 - Prob. 10EQ
Ch. 3 - Prob. 11EQCh. 3 - Prob. 12EQCh. 3 - Prob. 13EQCh. 3 - Prob. 14EQCh. 3 - Prob. 15EQCh. 3 - Prob. 16EQCh. 3 - Prob. 17EQCh. 3 - Prob. 18EQCh. 3 - Prob. 19EQCh. 3 - Prob. 20EQCh. 3 - Prob. 21EQCh. 3 - Prob. 22EQCh. 3 - Prob. 23EQCh. 3 - Prob. 24EQCh. 3 - Prob. 25EQCh. 3 - Prob. 26EQCh. 3 - Prob. 27EQCh. 3 - Prob. 28EQCh. 3 - Prob. 29EQCh. 3 - Prob. 30EQCh. 3 - The reaction just described is reversible....Ch. 3 - Prob. 32EQCh. 3 - Prob. 59EQ
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