Chemistry: The Molecular Science
5th Edition
ISBN: 9781285199047
Author: John W. Moore, Conrad L. Stanitski
Publisher: Cengage Learning
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Chapter 20, Problem 38QRT
Interpretation Introduction
Interpretation:
In alloys, how the percent of gold is expressed in carats has to be described.
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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 20 Solutions
Chemistry: The Molecular Science
Ch. 20.1 - Use partial atomic orbital box diagrams to explain...Ch. 20.1 - Prob. 20.1ECh. 20.1 - Prob. 20.2ECh. 20.2 - Prob. 20.2PSPCh. 20.2 - Prob. 20.3PSPCh. 20.2 - Prob. 20.3ECh. 20.3 - Explain how zinc and lead could be separated from...Ch. 20.3 - Prob. 20.4ECh. 20.4 - Prob. 20.5ECh. 20.5 - Use data from Appendix J to calculate the enthalpy...
Ch. 20.5 - Use Le Chatelier’s principle to explain how the...Ch. 20.5 - At what pH does Ecell = 0.00 V for the reduction...Ch. 20.6 - Prob. 20.6PSPCh. 20.6 - Prob. 20.8CECh. 20.6 - (a) Name this coordination compound:...Ch. 20.6 - Prob. 20.9CECh. 20.6 - Prob. 20.8PSPCh. 20.6 - Prob. 20.10CECh. 20.6 - Prob. 20.11CECh. 20.6 - Prob. 20.9PSPCh. 20.6 - Prob. 20.12ECh. 20.7 - Prob. 20.10PSPCh. 20.7 - Prob. 20.13CECh. 20.7 - Prob. 20.14CECh. 20 - Prob. 1QRTCh. 20 - Prob. 2QRTCh. 20 - Prob. 3QRTCh. 20 - Prob. 4QRTCh. 20 - Prob. 5QRTCh. 20 - Prob. 6QRTCh. 20 - Prob. 7QRTCh. 20 - Prob. 8QRTCh. 20 - Prob. 9QRTCh. 20 - Prob. 10QRTCh. 20 - Prob. 11QRTCh. 20 - Prob. 12QRTCh. 20 - Prob. 13QRTCh. 20 - Prob. 14QRTCh. 20 - Prob. 15QRTCh. 20 - Which Period 4 transition-metal ions are...Ch. 20 - Prob. 17QRTCh. 20 - Prob. 18QRTCh. 20 - Prob. 19QRTCh. 20 - Prob. 20QRTCh. 20 - Prob. 21QRTCh. 20 - Prob. 22QRTCh. 20 - Prob. 23QRTCh. 20 - Prob. 24QRTCh. 20 - Prob. 25QRTCh. 20 - Prob. 26QRTCh. 20 - Prob. 27QRTCh. 20 - Prob. 28QRTCh. 20 - Prob. 29QRTCh. 20 - Prob. 30QRTCh. 20 - Prob. 31QRTCh. 20 - Prob. 32QRTCh. 20 - Prob. 33QRTCh. 20 - Prob. 34QRTCh. 20 - Prob. 35QRTCh. 20 - Prob. 36QRTCh. 20 - Prob. 37QRTCh. 20 - Prob. 38QRTCh. 20 - Prob. 39QRTCh. 20 - Prob. 40QRTCh. 20 - Prob. 41QRTCh. 20 - Prob. 42QRTCh. 20 - Prob. 43QRTCh. 20 - Prob. 44QRTCh. 20 - Prob. 45QRTCh. 20 - Prob. 46QRTCh. 20 - Prob. 47QRTCh. 20 - Prob. 48QRTCh. 20 - Prob. 49QRTCh. 20 - Prob. 50QRTCh. 20 - Prob. 51QRTCh. 20 - Prob. 52QRTCh. 20 - Give the charge on the central metal ion in each...Ch. 20 - Prob. 54QRTCh. 20 - Prob. 55QRTCh. 20 - Classify each ligand as monodentate, bidentate,...Ch. 20 - Prob. 57QRTCh. 20 - Prob. 58QRTCh. 20 - Prob. 59QRTCh. 20 - Prob. 60QRTCh. 20 - Prob. 61QRTCh. 20 - Prob. 62QRTCh. 20 - Prob. 63QRTCh. 20 - Prob. 64QRTCh. 20 - Prob. 65QRTCh. 20 - Prob. 66QRTCh. 20 - Prob. 67QRTCh. 20 - Prob. 68QRTCh. 20 - Prob. 69QRTCh. 20 - Prob. 70QRTCh. 20 - Prob. 71QRTCh. 20 - Prob. 72QRTCh. 20 - Prob. 73QRTCh. 20 - Prob. 74QRTCh. 20 - How many unpaired electrons are in the high-spin...Ch. 20 - Prob. 76QRTCh. 20 - Prob. 77QRTCh. 20 - Prob. 78QRTCh. 20 - An aqueous solution of [Rh(C2O4)3]3− is yellow....Ch. 20 - Prob. 80QRTCh. 20 - Prob. 81QRTCh. 20 - Prob. 82QRTCh. 20 - Prob. 83QRTCh. 20 - Prob. 84QRTCh. 20 - Give the electron configuration of (a) Ti3+. (b)...Ch. 20 - Prob. 86QRTCh. 20 - Prob. 87QRTCh. 20 - Prob. 88QRTCh. 20 - Prob. 89QRTCh. 20 - Prob. 90QRTCh. 20 - Prob. 91QRTCh. 20 - Prob. 92QRTCh. 20 - Prob. 93QRTCh. 20 - Prob. 94QRTCh. 20 - Prob. 95QRTCh. 20 - Prob. 96QRTCh. 20 - Prob. 97QRTCh. 20 - Prob. 98QRTCh. 20 - Prob. 99QRTCh. 20 - Prob. 100QRTCh. 20 - Prob. 101QRTCh. 20 - Prob. 103QRTCh. 20 - Prob. 104QRTCh. 20 - Prob. 105QRTCh. 20 - Prob. 106QRTCh. 20 -
Repeat the directions for Question 106 using a...Ch. 20 - Prob. 113QRTCh. 20 - Prob. 114QRTCh. 20 - Prob. 115QRTCh. 20 - Prob. 116QRTCh. 20 - Prob. 117QRTCh. 20 - Prob. 118QRTCh. 20 - Prob. 119QRTCh. 20 - Prob. 120QRTCh. 20 - The glycinate ion (gly) is H2NCH2CO2. It can act...Ch. 20 - Five-coordinate coordination complexes are known,...Ch. 20 - Prob. 123QRTCh. 20 - Prob. 124QRTCh. 20 - Two different compounds are known with the formula...Ch. 20 - Prob. 126QRT
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