Chemistry by OpenStax (2015-05-04)
1st Edition
ISBN: 9781938168390
Author: Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher: OpenStax
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Textbook Question
Chapter 20, Problem 55E
What is the molecular structure about the nitrogen atom in trimethyl
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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 by OpenStax (2015-05-04)
Ch. 20 - Write the chemical formula and Lewis structure of...Ch. 20 - What is the difference between the hybridization...Ch. 20 - On a microscopic level, how does the reaction of...Ch. 20 - On a microscopic level, how does the reaction of...Ch. 20 - Explain why unbranched alkenes can form geometric...Ch. 20 - Explain why these two molecules are not isomers:Ch. 20 - Explain why these two molecules are not isomers:Ch. 20 - How does the carbon-atom hybridization change when...Ch. 20 - Write the Lewis structure and molecular formula...Ch. 20 - Write the chemical formula, condensed formula, and...
Ch. 20 - Give the complete IUPAC name for each of the...Ch. 20 - Give the complete IUPAC name for each of the...Ch. 20 - Butane is used as a fuel in disposable lighters....Ch. 20 - Write Lewis structures and name the five...Ch. 20 - Write Lewis structures for the Cis -trans isomers...Ch. 20 - Write structures for the three isomers of the...Ch. 20 - Isooctane is the common name of the isomer of...Ch. 20 - Write Lewis structures and IUPAC names for the...Ch. 20 - Write Lewis structures and IUPAC names for all...Ch. 20 - Name and write the structures of all isomers of...Ch. 20 - Write the structures for all the isomers of the...Ch. 20 - Write Lewis structures and describe the molecular...Ch. 20 - Benzene is one of the compounds used as an octane...Ch. 20 - Teflon is prepared by the polymerization of...Ch. 20 - Write two complete, balanced equations for each of...Ch. 20 - Write two complete, balanced equations for each of...Ch. 20 - What mass of 2-bromopropane could be prepared from...Ch. 20 - Acetylene is a very weak acid; however, it will...Ch. 20 - Ethylene can be produced by the pyrolysis of...Ch. 20 - Why do the compounds hexane, hexanol, and hexane...Ch. 20 - Write condensed formulas and provide IUPAC names...Ch. 20 - Give the complete IUPAC name for each of the...Ch. 20 - Give the complete IUPAC name and the common name...Ch. 20 - Write the condensed structures of both isomers...Ch. 20 - Write the condensed structures of all isomers with...Ch. 20 - Draw the condensed formulas for each of the...Ch. 20 - MTBE, Methyl tert -butyl ether, CH3OC(CH3)3, is...Ch. 20 - Write two complete balanced equations for each of...Ch. 20 - Write two complete balanced equations for each of...Ch. 20 - Order the following molecules from least to most...Ch. 20 - Predict the products of oxidizing the molecules...Ch. 20 - Predict the products of reducing the following...Ch. 20 - Explain why it is not possible to possible a...Ch. 20 - How does hybridization of the substituted carbon...Ch. 20 - Fatty acids are carboxylic acids that have long...Ch. 20 - Write a condensed structural formula, such as...Ch. 20 - Write a condensed structural formula, such as...Ch. 20 - The foul odor of rancid butter is caused by...Ch. 20 - Write the two-resonance structures for the acetate...Ch. 20 - Write two complete, balanced equations for each of...Ch. 20 - Write two complete balanced equations for each of...Ch. 20 - Yields in organic reactions are sometimes low....Ch. 20 - Alcohols A, B and C all have the composition C4H...Ch. 20 - Write the Lewis structures of both isomers with...Ch. 20 - What is the molecular structure about the nitrogen...Ch. 20 - Write the two resonance structures for the...Ch. 20 - Draw Lewis structures for pyridine and its...Ch. 20 - Write the Lewis structures of all isomers with the...Ch. 20 - Write two complete balanced equations for the...Ch. 20 - Write two complete, balanced equations for each of...Ch. 20 - Identify any carbon atoms that change...Ch. 20 - Identify any carbon atoms that change...Ch. 20 - Identify any carbon atoms that change...
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