(a) Interpretation: The enantiomer of D-fructose is to be drawn. Concept introduction: A sugar molecule in which hydroxyl group of second last carbon atom is on the left and right side of the horizontal line is known as L -sugar and D -sugar, respectively. Two compounds which are non-superimposable mirror images of each other are known as enantiomers.

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Answer 1

Question

Definition Definition Organic compounds that have a carbonyl group, C = O, as their functional group. The carbonyl group in ketones is placed somewhere in the middle of the molecular structure, which means, the C=O is attached to two alkyl groups or benzene rings. Just like all other homologous series, the naming of ketones is done using a common suffix “-one”. The general molecular formula is C n H 2n O. Functional group of a ketone

Chapter 26.4, Problem 10P

Interpretation Introduction

(a)

Interpretation: The enantiomer of D-fructose is to be drawn.

Concept introduction: A sugar molecule in which hydroxyl group of second last carbon atom is on the left and right side of the horizontal line is known as L-sugar and D-sugar, respectively. Two compounds which are non-superimposable mirror images of each other are known as enantiomers.

Interpretation Introduction

(b)

Interpretation: An epimer of D-fructose at C4 is to be drawn and the name of this compound is to be stated.

Concept introduction: Two compounds which are neither superimposable nor mirror images to each other and the configuration of one of their stereogenic centers is different are known as epimers.

Interpretation Introduction

(c)

Interpretation: An epimer of D-fructose at C5 is to be drawn and the name of this compound is to be stated.

Concept introduction: Two compounds which are neither superimposable nor mirror images to each other and the configuration of one of their stereogenic centers is different are known as epimers.

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4. (3 pts) From the information below, determine the lattice enthalpy for MgBr2. Show all work. AH/(kJ mol-¹) Sublimation of Mg(s) +148 lonization of Mg(g) +2187 to Mg2+(g) Vaporization of Br₂(1) +31 Dissociation of Br,(g) +193 Electron gain by Br(g) -331 Formation of MgBr₂(s) -524

1. (4 pts-2 pts each part) Consider the crystal structures of NaCl, ZnS, and CsCl (not necessarily shown in this order). a. For one of the three compounds, justify that the unit cell is consistent with stoichiometry of the compound. b. In each of the crystal structures, the cations reside in certain holes in the anions' packing structures. For each compound, what type of holes are occupied by the cations and explain why those particular types of holes are preferred.

(2 pts) What do you expect to happen in a Na2O crystal if a Cl− ion replaces one of the O2−ions in the lattice?

Answer 2

Question

Definition Definition Organic compounds that have a carbonyl group, C = O, as their functional group. The carbonyl group in ketones is placed somewhere in the middle of the molecular structure, which means, the C=O is attached to two alkyl groups or benzene rings. Just like all other homologous series, the naming of ketones is done using a common suffix “-one”. The general molecular formula is C n H 2n O. Functional group of a ketone

Chapter 26.4, Problem 10P

Interpretation Introduction

(a)

Interpretation: The enantiomer of D-fructose is to be drawn.

Concept introduction: A sugar molecule in which hydroxyl group of second last carbon atom is on the left and right side of the horizontal line is known as L-sugar and D-sugar, respectively. Two compounds which are non-superimposable mirror images of each other are known as enantiomers.

Interpretation Introduction

(b)

Interpretation: An epimer of D-fructose at C4 is to be drawn and the name of this compound is to be stated.

Concept introduction: Two compounds which are neither superimposable nor mirror images to each other and the configuration of one of their stereogenic centers is different are known as epimers.

Interpretation Introduction

(c)

Interpretation: An epimer of D-fructose at C5 is to be drawn and the name of this compound is to be stated.

Concept introduction: Two compounds which are neither superimposable nor mirror images to each other and the configuration of one of their stereogenic centers is different are known as epimers.

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Answer 3

Question

Definition Definition Organic compounds that have a carbonyl group, C = O, as their functional group. The carbonyl group in ketones is placed somewhere in the middle of the molecular structure, which means, the C=O is attached to two alkyl groups or benzene rings. Just like all other homologous series, the naming of ketones is done using a common suffix “-one”. The general molecular formula is C n H 2n O. Functional group of a ketone

Chapter 26.4, Problem 10P

Interpretation Introduction

(a)

Interpretation: The enantiomer of D-fructose is to be drawn.

Concept introduction: A sugar molecule in which hydroxyl group of second last carbon atom is on the left and right side of the horizontal line is known as L-sugar and D-sugar, respectively. Two compounds which are non-superimposable mirror images of each other are known as enantiomers.

Interpretation Introduction

(b)

Interpretation: An epimer of D-fructose at C4 is to be drawn and the name of this compound is to be stated.

Concept introduction: Two compounds which are neither superimposable nor mirror images to each other and the configuration of one of their stereogenic centers is different are known as epimers.

Interpretation Introduction

(c)

Interpretation: An epimer of D-fructose at C5 is to be drawn and the name of this compound is to be stated.

Concept introduction: Two compounds which are neither superimposable nor mirror images to each other and the configuration of one of their stereogenic centers is different are known as epimers.

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Answer 4

Question

Definition Definition Organic compounds that have a carbonyl group, C = O, as their functional group. The carbonyl group in ketones is placed somewhere in the middle of the molecular structure, which means, the C=O is attached to two alkyl groups or benzene rings. Just like all other homologous series, the naming of ketones is done using a common suffix “-one”. The general molecular formula is C n H 2n O. Functional group of a ketone

Chapter 26.4, Problem 10P

Interpretation Introduction

(a)

Interpretation: The enantiomer of D-fructose is to be drawn.

Concept introduction: A sugar molecule in which hydroxyl group of second last carbon atom is on the left and right side of the horizontal line is known as L-sugar and D-sugar, respectively. Two compounds which are non-superimposable mirror images of each other are known as enantiomers.

Interpretation Introduction

(b)

Interpretation: An epimer of D-fructose at C4 is to be drawn and the name of this compound is to be stated.

Concept introduction: Two compounds which are neither superimposable nor mirror images to each other and the configuration of one of their stereogenic centers is different are known as epimers.

Interpretation Introduction

(c)

Interpretation: An epimer of D-fructose at C5 is to be drawn and the name of this compound is to be stated.

Concept introduction: Two compounds which are neither superimposable nor mirror images to each other and the configuration of one of their stereogenic centers is different are known as epimers.

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Answer 5

Chapter 26.4, Problem 10P

Interpretation Introduction

(a)

Interpretation: The enantiomer of D-fructose is to be drawn.

Concept introduction: A sugar molecule in which hydroxyl group of second last carbon atom is on the left and right side of the horizontal line is known as L-sugar and D-sugar, respectively. Two compounds which are non-superimposable mirror images of each other are known as enantiomers.

Interpretation Introduction

(b)

Interpretation: An epimer of D-fructose at C4 is to be drawn and the name of this compound is to be stated.

Concept introduction: Two compounds which are neither superimposable nor mirror images to each other and the configuration of one of their stereogenic centers is different are known as epimers.

Interpretation Introduction

(c)

Interpretation: An epimer of D-fructose at C5 is to be drawn and the name of this compound is to be stated.

Concept introduction: Two compounds which are neither superimposable nor mirror images to each other and the configuration of one of their stereogenic centers is different are known as epimers.

Answer 6

Chapter 26.4, Problem 10P

Interpretation Introduction

(a)

Interpretation: The enantiomer of D-fructose is to be drawn.

Concept introduction: A sugar molecule in which hydroxyl group of second last carbon atom is on the left and right side of the horizontal line is known as L-sugar and D-sugar, respectively. Two compounds which are non-superimposable mirror images of each other are known as enantiomers.

Answer 7

Chapter 26.4, Problem 10P

Interpretation Introduction

(a)

Interpretation: The enantiomer of D-fructose is to be drawn.

Concept introduction: A sugar molecule in which hydroxyl group of second last carbon atom is on the left and right side of the horizontal line is known as L-sugar and D-sugar, respectively. Two compounds which are non-superimposable mirror images of each other are known as enantiomers.

Answer 8

Interpretation Introduction

(b)

Interpretation: An epimer of D-fructose at C4 is to be drawn and the name of this compound is to be stated.

Concept introduction: Two compounds which are neither superimposable nor mirror images to each other and the configuration of one of their stereogenic centers is different are known as epimers.

Answer 9

Interpretation Introduction

(b)

Interpretation: An epimer of D-fructose at C4 is to be drawn and the name of this compound is to be stated.

Concept introduction: Two compounds which are neither superimposable nor mirror images to each other and the configuration of one of their stereogenic centers is different are known as epimers.

Answer 10

Interpretation Introduction

(c)

Interpretation: An epimer of D-fructose at C5 is to be drawn and the name of this compound is to be stated.

Concept introduction: Two compounds which are neither superimposable nor mirror images to each other and the configuration of one of their stereogenic centers is different are known as epimers.

Answer 11

Interpretation Introduction

(c)

Interpretation: An epimer of D-fructose at C5 is to be drawn and the name of this compound is to be stated.

Concept introduction: Two compounds which are neither superimposable nor mirror images to each other and the configuration of one of their stereogenic centers is different are known as epimers.

Answer 12

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Answer 13

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Answer 14

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Answer 15

Ch. 26.2 - Prob. 1P Ch. 26.2 - Prob. 2P Ch. 26.2 - Label each stereogenic center as R or S. a. b. c....Ch. 26.2 - Convert the ball-and-stick model to a Fischer...Ch. 26.2 - Prob. 5P Ch. 26.2 - Prob. 6P Ch. 26.3 - Prob. 7P Ch. 26.3 - Prob. 8P Ch. 26.4 - Prob. 9P Ch. 26.4 - Prob. 10P

Solution Summary: The author explains that the enantiomer of D-fructose is shown in Figure 1.

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Chapter 26 Solutions