Chemical Principles
8th Edition
ISBN: 9781305581982
Author: Steven S. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Chapter 14, Problem 52E
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LTS
Solid:
AT=Te-Ti
Trial 1
Trial 2
Trial 3
Average
ΔΗ
Mass water, g
24.096
23.976
23.975
Moles of solid, mol
0.01763
001767
0101781
Temp. change, °C
2.9°C
11700
2.0°C
Heat of reaction, J
-292.37J -170.473
-193.26J
AH, kJ/mole
16.58K 9.647 kJ 10.85 kr
16.58K59.64701
KJ
mol
12.35k
Minimum AS,
J/mol K
41.582
mol-k
Remember: q = mCsAT (m = mass of water, Cs=4.184J/g°C) & qsin =-qrxn &
Show your calculations for:
AH in J and then in kJ/mole for Trial 1:
qa (24.0969)(4.1845/g) (-2.9°C)=-292.37J
qsin =
qrxn =
292.35 292.37J
AH in J = 292.375 0.2923kJ
0.01763m01
=1.65×107
AH in kJ/mol =
=
16.58K
0.01763mol
mol
qrx
Minimum AS in J/mol K (Hint: use the average initial temperature of the three trials, con
Kelvin.)
AS=AHIT
(1.65×10(9.64×103) + (1.0
Jimai
For the compound: C8H17NO2
Use the following information to come up with a plausible structure:
8
This compound has "carboxylic acid amide" and ether functional groups.
The peaks at 1.2ppm are two signals that are overlapping one another.
One of the two signals is a doublet that represents 6 hydrogens; the
other signal is a quartet that represents 3 hydrogens.
Vnk the elements or compounds in the table below in decreasing order of their boiling points. That is, choose 1 next to the substance with the highest bolling
point, choose 2 next to the substance with the next highest boiling point, and so on.
substance
C
D
chemical symbol,
chemical formula
or Lewis structure.
CH,-N-CH,
CH,
H
H 10: H
C-C-H
H H H
Cale
H 10:
H-C-C-N-CH,
Bri
CH,
boiling point
(C)
Сен
(C) B
(Choose
Chapter 14 Solutions
Chemical Principles
Ch. 14 - Prob. 1DQCh. 14 - Prob. 2DQCh. 14 - Prob. 3DQCh. 14 - Prob. 4DQCh. 14 - Prob. 5DQCh. 14 - Prob. 6DQCh. 14 - Compare and contrast the MO model with the LE...Ch. 14 - Prob. 8DQCh. 14 - Prob. 9ECh. 14 - Prob. 10E
Ch. 14 - Prob. 11ECh. 14 - Prob. 12ECh. 14 - Prob. 13ECh. 14 - Use the localized electron model to describe the...Ch. 14 - Prob. 15ECh. 14 - Use the LE model to describe the bonding in H2CO...Ch. 14 - Prob. 17ECh. 14 - The space-filling models of hydrogen cyanide and...Ch. 14 - Prob. 19ECh. 14 - Prob. 20ECh. 14 - Prob. 21ECh. 14 - Indigo is the dye used in coloring blue jeans. The...Ch. 14 - Prob. 23ECh. 14 - Prob. 24ECh. 14 - Why must all six atoms in C2H4 be in the same...Ch. 14 - The allene molecule has the following Lewis...Ch. 14 - Biacetyl and acetoin are added to margarine to...Ch. 14 - Many important compounds in the chemical industry...Ch. 14 - Prob. 29ECh. 14 - Hot and spicy foods contain molecules that...Ch. 14 - Two molecules used in the polymer industry are...Ch. 14 - Prob. 32ECh. 14 - The three most stable oxides of carbon are carbon...Ch. 14 - Prob. 34ECh. 14 - Prob. 35ECh. 14 - What are the relationships among bond order, bond...Ch. 14 - Prob. 37ECh. 14 - A Lewis structure obeying the octet rule can be...Ch. 14 - Prob. 39ECh. 14 - Why does the molecular orbital model do a better...Ch. 14 - Prob. 41ECh. 14 - Prob. 42ECh. 14 - Prob. 43ECh. 14 - In which of the following diatomic molecules would...Ch. 14 - Prob. 45ECh. 14 - Using the molecular orbital model to describe the...Ch. 14 - The transport of O2 in the blood is carried out by...Ch. 14 - Prob. 48ECh. 14 - Prob. 49ECh. 14 - Consider the following electron configuration:...Ch. 14 - Prob. 51ECh. 14 - Using an MO energy-level diagram, would you expect...Ch. 14 - Use Figs.14.45 and 14.46 to answer the following...Ch. 14 - The diatomic molecule OH exists in the gas phase....Ch. 14 - Prob. 55ECh. 14 - Describe the bonding in the O3 molecule and the...Ch. 14 - Prob. 57ECh. 14 - The space-filling model for benzoic acid is shown...Ch. 14 - Prob. 59ECh. 14 - Prob. 60ECh. 14 - The microwave spectrum of 12C16O shows that the...Ch. 14 - Prob. 62ECh. 14 - Prob. 63ECh. 14 - Prob. 64ECh. 14 - Draw the Lewis structures, predict the molecular...Ch. 14 - Prob. 66AECh. 14 - Prob. 67AECh. 14 - Prob. 68AECh. 14 - Prob. 69AECh. 14 - Prob. 70AECh. 14 - Prob. 71AECh. 14 - Prob. 72AECh. 14 - Prob. 73AECh. 14 - Vitamin B6 is an organic compound whose deficiency...Ch. 14 - Prob. 75AECh. 14 - Prob. 76AECh. 14 - Prob. 77AECh. 14 - Prob. 78AECh. 14 - Prob. 79AECh. 14 - Draw the Lewis structures for TeCl4 , ICl5 , PCl5...Ch. 14 - Prob. 81AECh. 14 - Pelargondin is the molecule responsible for the...Ch. 14 - Prob. 83AECh. 14 - Prob. 84AECh. 14 - Prob. 85AECh. 14 - Prob. 86AECh. 14 - Given that the ionization energy of F2 is...Ch. 14 - Bond energy has been defined in the text as the...Ch. 14 - a.A flask containing gaseous N2 is irradiated with...Ch. 14 - Use the MO model to determine which of the...Ch. 14 - Cholesterol (C27H46O) has the following structure:...Ch. 14 - Arrange the following from lowest to highest...Ch. 14 - Carbon monoxide (CO) forms bonds to a variety of...Ch. 14 - Prob. 94CPCh. 14 - In Exercise71 in Chapter13 , the Lewis structures...Ch. 14 - Prob. 96CPCh. 14 - Prob. 97CPCh. 14 - Prob. 98MP
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