Chemical Principles
8th Edition
ISBN: 9781305581982
Author: Steven S. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Chapter 15, Problem 82E
Chemists commonly use a rule of thumb that an increase of
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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 15 Solutions
Chemical Principles
Ch. 15 - Prob. 1DQCh. 15 - Prob. 2DQCh. 15 - a graph of [A] versus time for zero-, first-, and...Ch. 15 - Prob. 4DQCh. 15 - Prob. 5DQCh. 15 - Prob. 6DQCh. 15 - Prob. 7DQCh. 15 - Prob. 8DQCh. 15 - Provide a conceptual rationale for the differences...Ch. 15 - Prob. 10E
Ch. 15 - Consider the general reaction aA+bBcC and the...Ch. 15 - Prob. 12ECh. 15 - Prob. 13ECh. 15 - Prob. 14ECh. 15 - Prob. 15ECh. 15 - The hydroxyl radical (OH) is an important...Ch. 15 - Prob. 17ECh. 15 - The reaction 2NO(g)+Cl2(g)2NOCl(g) was studied at...Ch. 15 - Prob. 19ECh. 15 - The following data were obtained for the gas-phase...Ch. 15 - Prob. 21ECh. 15 - Prob. 22ECh. 15 - Prob. 23ECh. 15 - Prob. 24ECh. 15 - Prob. 25ECh. 15 - Prob. 26ECh. 15 - Prob. 27ECh. 15 - Prob. 28ECh. 15 - If the half-life for a reaction is 20. seconds,...Ch. 15 - A certain reaction has the following general form:...Ch. 15 - Prob. 31ECh. 15 - Prob. 32ECh. 15 - The decomposition of hydrogen peroxide was studied...Ch. 15 - Prob. 34ECh. 15 - Prob. 35ECh. 15 - Prob. 36ECh. 15 - At 500K in the presence of a copper surface,...Ch. 15 - Experimental data for the reaction A2B+C have been...Ch. 15 - The reaction NO(g)+O3(g)NO2(g)+O2(g) was studied...Ch. 15 - Determine the forms of the integrated and the...Ch. 15 - Prob. 41ECh. 15 - Prob. 42ECh. 15 - Prob. 43ECh. 15 - Prob. 44ECh. 15 - Prob. 45ECh. 15 - Prob. 46ECh. 15 - Prob. 47ECh. 15 - Prob. 48ECh. 15 - Prob. 49ECh. 15 - Prob. 50ECh. 15 - Prob. 51ECh. 15 - Prob. 52ECh. 15 - Prob. 53ECh. 15 - Prob. 54ECh. 15 - Prob. 55ECh. 15 - Define each of the following. elementary step...Ch. 15 - Define what is meant by unimolecular and...Ch. 15 - What two requirements must be met to call a...Ch. 15 - Prob. 59ECh. 15 - Prob. 60ECh. 15 - A proposed mechanism for a reaction is...Ch. 15 - Is the mechanism NO+Cl2k1NOCl2NOCl2+NOk22NOCl...Ch. 15 - The reaction 2NO(g)+O2(g)2NO2(g) exhibits the rate...Ch. 15 - Prob. 64ECh. 15 - The reaction...Ch. 15 - Prob. 66ECh. 15 - Prob. 67ECh. 15 - Prob. 68ECh. 15 - The following mechanism is proposed for the...Ch. 15 - The following mechanism has been proposed to...Ch. 15 - Consider the hypothetical reaction BE+F which is...Ch. 15 - How is the rate of a reaction affected by each of...Ch. 15 - The central idea of the collision model is that...Ch. 15 - Prob. 74ECh. 15 - Prob. 75ECh. 15 - Consider the following potential energy plots Rank...Ch. 15 - Prob. 77ECh. 15 - Prob. 78ECh. 15 - Prob. 79ECh. 15 - Prob. 80ECh. 15 - Prob. 81ECh. 15 - Chemists commonly use a rule of thumb that an...Ch. 15 - Prob. 83ECh. 15 - Prob. 84ECh. 15 - Prob. 85ECh. 15 - Prob. 86ECh. 15 - For the following reaction profiles, indicate the...Ch. 15 - Prob. 88ECh. 15 - Prob. 89ECh. 15 - Prob. 90ECh. 15 - Prob. 91ECh. 15 - Prob. 92ECh. 15 - The decomposition of NH3 to N2 and H2 was studied...Ch. 15 - One pathway for the destruction of ozone in the...Ch. 15 - Prob. 95ECh. 15 - Prob. 96ECh. 15 - Prob. 97ECh. 15 - Prob. 98ECh. 15 - Prob. 99ECh. 15 - Prob. 100AECh. 15 - Prob. 101AECh. 15 - Prob. 102AECh. 15 - Prob. 103AECh. 15 - Prob. 104AECh. 15 - Prob. 105AECh. 15 - Prob. 106AECh. 15 - Prob. 107AECh. 15 - Prob. 108AECh. 15 - Prob. 109AECh. 15 - The decomposition of NO2(g) occurs by the...Ch. 15 - Prob. 111AECh. 15 - Prob. 112AECh. 15 - Prob. 113AECh. 15 - Prob. 114AECh. 15 - Prob. 115AECh. 15 - Prob. 116AECh. 15 - The compound NO2Cl is thought to decompose to NO2...Ch. 15 - Prob. 118AECh. 15 - Prob. 119AECh. 15 - Prob. 120AECh. 15 - Prob. 121AECh. 15 - Prob. 122AECh. 15 - Prob. 123AECh. 15 - Prob. 124AECh. 15 - Prob. 125AECh. 15 - Prob. 126AECh. 15 - Consider the following reaction: CH3X+YCH3Y+X At...Ch. 15 - The following data were collected in two studies...Ch. 15 - Prob. 129CPCh. 15 - For the reaction 2A+Bproducts afriend proposes the...Ch. 15 - Consider the hypothetical reaction A+B+2C2D+3E In...Ch. 15 - A reaction represented by the equation...Ch. 15 - Prob. 133CPCh. 15 - You are studying the kinetics of the reaction...Ch. 15 - Prob. 135CPCh. 15 - Prob. 136MP
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