Organic Chemistry
9th Edition
ISBN: 9781305080485
Author: John E. McMurry
Publisher: Cengage Learning
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Chapter 4.3, Problem 8P
Each H↔H eclipsing interaction in ethane costs about 4.0 kJ/mol. How many such interactions are percent in cyclopropane? What fraction of the overall 115 kJ/mol (27.5 kcal/mol) strain energy of cyclopropane is due to torsional strain.
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Q2. Consider the hydrogenation of ethylene
C2H4 + H2 = C2H6
The heats of combustion and molar entropies for the three gases at 298 K are given by:
C2H4
C2H6
H2
AH comb/kJ mol¹
-1395
-1550
-243
Sº / J K¹ mol-1
220.7
230.4
131.1
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10.9 J K¹ mol¹. Using these data, determine:
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(b) the standard entropy change at 800 K
(c) the equilibrium constant at 800 K.
Chapter 4 Solutions
Organic Chemistry
Ch. 4.1 - Give IUPAC names for the following cycloalkanes:Ch. 4.1 - Draw structures corresponding to the following...Ch. 4.1 - Name the following cycloalkane:Ch. 4.2 - Prob. 4PCh. 4.2 - Draw the structures of the following molecules:...Ch. 4.2 - Prostaglandin F2α, a hormone that causes uterine...Ch. 4.2 - Name the following substances, including the cis-...Ch. 4.3 - Each H↔H eclipsing interaction in ethane costs...Ch. 4.3 - cis-1, 2-Dimethylcyclopropane has more strain than...Ch. 4.4 - Prob. 10P
Ch. 4.4 - Two conformations of cis-l, 3-dimethylcyclobutane...Ch. 4.6 - Draw two different chair conformations of...Ch. 4.6 - Draw two differant chair conformations of trans-1,...Ch. 4.6 - Prob. 14PCh. 4.7 - What is the energy difference between the axial...Ch. 4.7 - Prob. 16PCh. 4.7 - Look at Figure 4-12 on page 105, and estimate the...Ch. 4.8 - Draw the more stable chair conformation of the...Ch. 4.8 - Identify each substituent in the following...Ch. 4.9 - Which isomer is more stable, cis-decalin or...Ch. 4.9 - Look at the following structure of the female...Ch. 4.SE - Prob. 22VCCh. 4.SE - Name the following compound, identify each...Ch. 4.SE - A trisubstituted cyclohexane with three...Ch. 4.SE - The following cyclohexane derivative has three...Ch. 4.SE - Prob. 26VCCh. 4.SE - Draw the five cycloalkanes with the formula C5H10.Ch. 4.SE - Draw two constitutional isomers of cis-1,...Ch. 4.SE - Prob. 29APCh. 4.SE - Tell whether the following pairs of compounds are...Ch. 4.SE - Prob. 31APCh. 4.SE - Prob. 32APCh. 4.SE - Draw 1, 3, 5-trimethylcyclohexane using a hexagon...Ch. 4.SE - Hydrocortisone, a naturally occurring hormone...Ch. 4.SE - A 1, 2-cis disubstituted cyclohexane, such as...Ch. 4.SE - A 1, 2-trans disubstituted cyclohexane must have...Ch. 4.SE - Prob. 37APCh. 4.SE - Which is more stable, a 1, 4-trans disubstituted...Ch. 4.SE - cis-1, 2-Dimethylcyclobutane is less stable than...Ch. 4.SE - From the data in Figure 4-12 and Table 4-1,...Ch. 4.SE - Prob. 41APCh. 4.SE - Draw the two chair conformations of...Ch. 4.SE - Draw the two chair conformations of...Ch. 4.SE - Galactose, a sugar related to glucose, contains a...Ch. 4.SE - There are four cis-trans isomers of menthol...Ch. 4.SE - There are four cis-trans isomers of menthol...Ch. 4.SE - The diaxial conformation of cis-1,...Ch. 4.SE - Approximately how much steric strain does the...Ch. 4.SE - In light of your answer to Problem 4-43, draw the...Ch. 4.SE - Prob. 50APCh. 4.SE - Prob. 51APCh. 4.SE - Using molecular models as well as structural...Ch. 4.SE - trans-Decalin is more stable than its cis isomer,...Ch. 4.SE - As mentioned in Problem 3-53, the statin drugs,...Ch. 4.SE - myo-Inositol, one of the isomers of...Ch. 4.SE - How many cis–trans stereoisomers of myo-inositol...Ch. 4.SE - The German chemist J. Bredt proposed in 1935 that...Ch. 4.SE - Tell whether each of the following substituents on...Ch. 4.SE - Prob. 59APCh. 4.SE - Prob. 60APCh. 4.SE - Ketones react with alcohols to yield products...Ch. 4.SE - Alcohols undergo an oxidation reaction to yield...
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Chapter 4 Alkanes and Cycloalkanes Lesson 2; Author: Linda Hanson;https://www.youtube.com/watch?v=AL_CM_Btef4;License: Standard YouTube License, CC-BY
Chapter 4 Alkanes and Cycloalkanes Lesson 1; Author: Linda Hanson;https://www.youtube.com/watch?v=PPIa6EHJMJw;License: Standard Youtube License