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Following is the structural formula and a ball-and-stick model of cholic acid (Chapter

Organic Chemistry | 7th Edition | ISBN: 9781133952848 | Authors: William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote ISBN: 9781133952848 483

Solution for problem 2.65 Chapter 2

Organic Chemistry | 7th Edition

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Organic Chemistry | 7th Edition | ISBN: 9781133952848 | Authors: William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

Organic Chemistry | 7th Edition

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Problem 2.65

Following is the structural formula and a ball-and-stick model of cholic acid (Chapter 26),a component of human bile whose function is to aid in the absorption and digestion ofdietary fats. (a) What is the conformation of ring A? of ring B? of ring C? of ring D?(b) Are the hydroxyl groups on rings A, B, and C axial or equatorial to their respectiverings?(c) Is the methyl group at the junction of rings A and B axial or equatorial to ring A?Is it axial or equatorial to ring B?(d) Is the hydrogen at the junction of rings A and B axial or equatorial to ring A?Is it axial or equatorial to ring B?(e) Is the methyl group at the junction of rings C and D axial or equatorial to ring C?

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Chapter 5: Thermochemistry Week 8 10/6/16 Chapter 5: Thermochemistry Part 2: Energy Basics 5.1 – Energy Basics Thermochemistry – the study of measuring the amount of heat (energy) absorbed or released during a chemical reaction or physical change Energy – the capacity to supply heat or do work Work (w) – the process of causing matter to move against an opposing force Potential Energy – the energy an object has because of its relative position, composition, or condition Ex. – An object on the edge of the table versus one on the floor Kinetic Energy – the energy an object possesses because of its motion Ex. – A toy car rolling down a hill as opposed to one already stopped at the bottom Thermal Energy – kinetic energy associated with the random motion of atoms and molecules Temperature – a quantitative measure of “hot” or “cold” Higher average kinetic energy = higher temperature *FLASHBACK Extensive Property – properties that do depends on the amount of matter present Temperature Intensive Property – properties that do not depend on the amount of matter present Thermal Energy Heat (q) – the transfer of thermal energy between two bodies at room temperatures aka “heat flow” *** Thermal energy naturally flows from objects with high temperature to object with low temperature Exothermic Process – any chemical or physical process that releases heat – “feels hot” Endothermic Process – any chemical or physical pro

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Chapter 2, Problem 2.65 is Solved
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Textbook: Organic Chemistry
Edition: 7
Author: William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
ISBN: 9781133952848

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Following is the structural formula and a ball-and-stick model of cholic acid (Chapter