Physical Chemistry
2nd Edition
ISBN: 9781133958437
Author: Ball, David W. (david Warren), BAER, Tomas
Publisher: Wadsworth Cengage Learning,
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Chapter 20, Problem 20.99E
Interpretation Introduction
Interpretation:
The percentage change in the rate constant, when the value of
Concept introduction:
The relationship between
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Check out a sample textbook solutionStudents have asked these similar questions
Part VII. The H-NMR of a compound with molecular formula C5 H 10 O2 is given below.
Find the following:
(a) The no. of protons corresponding to each signal in the spectra
(6) Give the structure of the compound and assign the signals to each
proton in the compound.
a
70.2
Integration Values
C5H10O2
b
47.7
C
46.5
d
69.5
3.6 3.5
3.4 3.3 3.2 3.1 3.0
2.9 2.8
2.7
2.6 2.5
2.4 2.3 2.2 2.1 2.0
Chemical Shift (ppm)
1.9
1.8
1.7 1.6
1.5
1.4 1.3 1.2
1.1 1.0
0.9 0.8
Part 111. 1 H-NMR spectrum of a compound with integration values in red is given below.
Answer the following:
(a) write the signals in the 'H-NMR spectrum to the corresponding protons on the structure
of the molecule below.
(b) Identify the theoretical multiplicities for each proton in the compound. Also give the possible.
complex splitting patterns assuming J values are not similar.
там
Br
22
2
3
6
4 7.2 7.0 6.8 6.6 6.4 6.2 6.0 5.8 5.6 5.4 5.2 5.0 4.8 4.6 4.4 4.2 4.0 3.8 3.6 3.4 3.2 3.0 2.8 2.6 2.4 2.2 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0
Chemical Shift (ppm)
ra.
Br
2
3
6
6
2.5
2.4
2.3
2.2
2.1
2.0
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
0.9
0.8
Chemical Shift (ppm)
2
2
Br
7.3
7.2
7.1
7.0 6.9
6.7 6.6 6.5
6.4
6.3
6.2
6.1
6.0
Chemical Shift (ppm)
5.9
5.8 5.7
5.5 5.4 5.3 5.2
5.0 4.9
1600°
1538°C
1493°C
In the diagram, the letter L indicates
that it is a liquid. Indicate its
components in the upper region
where only L is indicated.
The
iron-iron carbide phase
diagram.
Temperature (°C)
1400
8
1394°C
y+L
1200
2.14
y, Austenite
10000
912°C
800a
0.76
0.022
600
400
(Fe)
a, Ferrite
Composition (at% C)
15
1147°C
a + Fe3C
2
3
Composition (wt% C)
L
2500
4.30
2000
y + Fe3C
727°C
1500
Cementite (Fe3C)
1000
4
5
6
6.70
Temperature (°F)
Chapter 20 Solutions
Physical Chemistry
Ch. 20 - Prob. 20.1ECh. 20 - The oxidation-reduction reaction between iron...Ch. 20 - The oxidation-reduction reaction between iron...Ch. 20 - The rate of the reaction...Ch. 20 - For a certain reaction between NO and O2, the rate...Ch. 20 - For a reaction between SO2 and Cl2, the rate law...Ch. 20 - Consider the chemical reaction A+B+Cproducts...Ch. 20 - For the chemical reaction...Ch. 20 - Explain how a species might be part of a rate law...Ch. 20 - Refer to Example 20.2 and explain whether any...
Ch. 20 - Rate law experiments dont always give data in the...Ch. 20 - Prob. 20.12ECh. 20 - What must the units on k be for the following rate...Ch. 20 - What must the units on k be for the following rate...Ch. 20 - The reaction 2O33O2 has first-order kinetics and a...Ch. 20 - Digestive processes are first-order processes. The...Ch. 20 - Prob. 20.18ECh. 20 - Derive equation 20.15.Ch. 20 - Prob. 20.20ECh. 20 - To a very good approximation, the cooling of a hot...Ch. 20 - Assume that thermal decomposition of mercuric...Ch. 20 - Prob. 20.23ECh. 20 - Prob. 20.24ECh. 20 - Derive equation 20.22.Ch. 20 - a Write a rate law and an integrated rate law for...Ch. 20 - Derive an expression for the half-life of a a...Ch. 20 - Prob. 20.28ECh. 20 - Rewrite equation 20.27 so that it has the form of...Ch. 20 - One can also define a third-life, t1/3, which is...Ch. 20 - The decomposition of NH3: 2NH3N2+3H2 is a...Ch. 20 - Prob. 20.32ECh. 20 - Prob. 20.33ECh. 20 - When ionic compounds crystallize from a...Ch. 20 - An aqueous reaction that uses the solvent H2O as a...Ch. 20 - The rate law for the reaction...Ch. 20 - If a reaction has the same rate constant, what...Ch. 20 - List at least four experimentally determined...Ch. 20 - Prob. 20.39ECh. 20 - Prob. 20.40ECh. 20 - Prob. 20.41ECh. 20 - Prob. 20.42ECh. 20 - What is the value of the equilibrium constant of a...Ch. 20 - Prob. 20.44ECh. 20 - Prob. 20.45ECh. 20 - Show how equation 20.33 reduces to a simpler form...Ch. 20 - Write expressions like equation 20.37 for a set of...Ch. 20 - Prob. 20.48ECh. 20 - Prob. 20.49ECh. 20 - Prob. 20.50ECh. 20 - Prob. 20.51ECh. 20 - Prob. 20.52ECh. 20 - Prob. 20.53ECh. 20 - Prob. 20.54ECh. 20 - For what values of time, t, will 210Bi and 206Pb...Ch. 20 - Prob. 20.56ECh. 20 - An interesting pair of consecutive reactions...Ch. 20 - Find limiting forms of equation 20.47 for a k1>>k2...Ch. 20 - Prob. 20.59ECh. 20 - Prob. 20.60ECh. 20 - Prob. 20.61ECh. 20 - Prob. 20.62ECh. 20 - At room temperature (22C), the rate constant for...Ch. 20 - Recently, researchers studying the kinetics of...Ch. 20 - A reaction has k=1.771061/(Ms) at 25.0C and an...Ch. 20 - Prob. 20.66ECh. 20 - Prob. 20.67ECh. 20 - Prob. 20.68ECh. 20 - Nitric oxide, NO, is known to break down ozone,...Ch. 20 - a Suggest a mechanism for the bromination of...Ch. 20 - Prob. 20.71ECh. 20 - Prob. 20.72ECh. 20 - Determine a rate law for the chlorination of...Ch. 20 - Determine a rate law for the chlorination of...Ch. 20 - A proposed mechanism for the gas-phase...Ch. 20 - Prob. 20.76ECh. 20 - The nitration of methanol, CH3OH, by nitrous acid...Ch. 20 - Prob. 20.78ECh. 20 - Many gas-phase reactions require some inert body,...Ch. 20 - Prob. 20.80ECh. 20 - Carbonic anhydrase, an enzyme whose substrate is...Ch. 20 - Show that another form of the Michaelis-Menten...Ch. 20 - Prob. 20.83ECh. 20 - Prob. 20.84ECh. 20 - Prob. 20.85ECh. 20 - Prob. 20.86ECh. 20 - Pyrolysis involves heating compounds to break them...Ch. 20 - Prob. 20.88ECh. 20 - Label the elementary processes for the reaction...Ch. 20 - Prob. 20.90ECh. 20 - What are the rate laws of mechanisms 1 and 2 for...Ch. 20 - Estimate G for an elementary process whose rate...Ch. 20 - Prob. 20.93ECh. 20 - Prob. 20.94ECh. 20 - Prob. 20.95ECh. 20 - For the following two reactions H+Cl2HCl+Cl...Ch. 20 - Prob. 20.97ECh. 20 - Prob. 20.98ECh. 20 - Prob. 20.99ECh. 20 - Consider a reaction that has two parallel pathways...Ch. 20 - Consider a set of first-order consecutive...Ch. 20 - Prob. 20.102E
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