General, Organic, and Biological Chemistry
General, Organic, and Biological Chemistry
7th Edition
ISBN: 9781285853918
Author: H. Stephen Stoker
Publisher: Cengage Learning
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Chapter 18, Problem 18.49EP

(a)

Interpretation Introduction

Interpretation: Whether the boiling point will be the same or different for the compounds (+)lacticacid and ()lacticacid has to be predicted.

Concept introduction: Lactic acid is an organic compound with the formula CH3CH(OH)COOH.  Lactic acid exists in two different forms which are (+)lacticacid and ()lacticacid.  These two forms of lactic acid are enantiomers.

(a)

Expert Solution
Check Mark

Answer to Problem 18.49EP

The boiling point for (+)lacticacid and ()lacticacid is same.

Explanation of Solution

The most of the properties of (+)lacticacid and ()lacticacid are same.  But the properties involving the interaction with the plane polarised light and other chiral molecules, like solubility in a chiral solvent will be different.  The boiling point of (+)lacticacid and ()lacticacid will be same.

(b)

Interpretation Introduction

Interpretation: Whether the optical activity will be the same or different for the compounds (+)lacticacid and ()lacticacid has to be predicted.

Concept introduction: Lactic acid is an organic compound with the formula CH3CH(OH)COOH.  Lactic acid exists in two different forms which are (+)lacticacid and ()lacticacid.  These two forms of lactic acid are enantiomers.

(b)

Expert Solution
Check Mark

Answer to Problem 18.49EP

The optical activity for (+)lacticacid and ()lacticacid is different.

Explanation of Solution

The most of the properties of (+)lacticacid and ()lacticacid are same.  But the properties involving the interaction with the plane polarised light and other chiral molecules, like solubility in a chiral solvent will be different.

Hence, the optical activity for (+)lacticacid and ()lacticacid is different.

(c)

Interpretation Introduction

Interpretation: Whether the reaction with ethanol will be the same or different for the compounds (+)lacticacid and ()lacticacid has to be predicted.

Concept introduction: Lactic acid is an organic compound with the formula CH3CH(OH)COOH.  Lactic acid exists in two different forms which are (+)lacticacid and ()lacticacid.  These two forms of lactic acid are enantiomers.

(c)

Expert Solution
Check Mark

Answer to Problem 18.49EP

The the reaction with ethanol for (+)lacticacid and ()lacticacid is same.

Explanation of Solution

The most of the properties of (+)lacticacid and ()lacticacid are same.  But the properties involving the interaction with the plane polarised light and other chiral molecules, like solubility in a chiral solvent will be different.  The reaction of (+)lacticacid and ()lacticacid with ethanol will be similar.

Hence, the reaction with ethanol for (+)lacticacid and ()lacticacid is same.

(d)

Interpretation Introduction

Interpretation: Whether the reaction with ()2,3butanediol will be the same or different for the compounds (+)lacticacid and ()lacticacid has to be predicted.

Concept introduction: Lactic acid is an organic compound with the formula CH3CH(OH)COOH.  Lactic acid exists in two different forms which are (+)lacticacid and ()lacticacid.  These two forms of lactic acid are enantiomers.

(d)

Expert Solution
Check Mark

Answer to Problem 18.49EP

The reaction with ()2,3butanediol for (+)lacticacid and ()lacticacid is different.

Explanation of Solution

The two forms of lactic acid, (+)lacticacid and ()lacticacid are enantiomers.  Therefore, most of the properties of (+)lacticacid and ()lacticacid are same.  But the properties involving the interaction with the plane polarised light and other chiral molecules, like solubility in a chiral solvent will be different.  The reaction of (+)lacticacid and ()lacticacid with ()2,3butanediol will be different.

Hence, the reaction with ()2,3butanediol for (+)lacticacid and ()lacticacid is different.

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Chapter 18 Solutions

General, Organic, and Biological Chemistry

Ch. 18.4 - Prob. 3QQCh. 18.4 - Prob. 4QQCh. 18.5 - Prob. 1QQCh. 18.5 - Prob. 2QQCh. 18.6 - Prob. 1QQCh. 18.6 - Which of the following Fischer projection formulas...Ch. 18.6 - Prob. 3QQCh. 18.6 - Prob. 4QQCh. 18.7 - Prob. 1QQCh. 18.7 - Prob. 2QQCh. 18.8 - Prob. 1QQCh. 18.8 - Which of the following statements about...Ch. 18.8 - The smallest monosaccharides that can exist are a....Ch. 18.9 - Prob. 1QQCh. 18.9 - Prob. 2QQCh. 18.9 - Prob. 3QQCh. 18.9 - In which of the following pairs of monosaccharides...Ch. 18.9 - In which of the following pairs of monosaccharides...Ch. 18.10 - Prob. 1QQCh. 18.10 - Which of the following structures represents a...Ch. 18.10 - Prob. 3QQCh. 18.10 - Prob. 4QQCh. 18.10 - Prob. 5QQCh. 18.11 - Prob. 1QQCh. 18.11 - Which of the following is the correct Haworth...Ch. 18.12 - Prob. 1QQCh. 18.12 - Prob. 2QQCh. 18.12 - Prob. 3QQCh. 18.12 - Prob. 4QQCh. 18.12 - Prob. 5QQCh. 18.13 - Which of the following disaccharides contains...Ch. 18.13 - Which of the following disaccharides will produce...Ch. 18.13 - In which of the following disaccharides is the...Ch. 18.13 - In which of the following pairs of disaccharides...Ch. 18.13 - Which of the following disaccharides is not a...Ch. 18.13 - The terms milk sugar and table sugar apply,...Ch. 18.14 - Prob. 1QQCh. 18.14 - Prob. 2QQCh. 18.15 - Which of the following statements about...Ch. 18.15 - Prob. 2QQCh. 18.16 - Prob. 1QQCh. 18.16 - Which of the following storage polysaccharides is...Ch. 18.16 - Prob. 3QQCh. 18.16 - Which of the following statements about storage...Ch. 18.17 - Prob. 1QQCh. 18.17 - Which of the following statements about cellulose...Ch. 18.17 - Chitin is a polysaccharide in which the...Ch. 18.18 - Which of the following statements about the...Ch. 18.18 - Prob. 2QQCh. 18.19 - Which of the following is not classified as a...Ch. 18.19 - Prob. 2QQCh. 18.20 - Prob. 1QQCh. 18.20 - Which of the following is not a biochemical...Ch. 18 - Prob. 18.1EPCh. 18 - Prob. 18.2EPCh. 18 - Prob. 18.3EPCh. 18 - Prob. 18.4EPCh. 18 - Prob. 18.5EPCh. 18 - Prob. 18.6EPCh. 18 - Prob. 18.7EPCh. 18 - Prob. 18.8EPCh. 18 - Prob. 18.9EPCh. 18 - Prob. 18.10EPCh. 18 - Prob. 18.11EPCh. 18 - Prob. 18.12EPCh. 18 - Prob. 18.13EPCh. 18 - Prob. 18.14EPCh. 18 - Prob. 18.15EPCh. 18 - Prob. 18.16EPCh. 18 - Prob. 18.17EPCh. 18 - Prob. 18.18EPCh. 18 - Prob. 18.19EPCh. 18 - Prob. 18.20EPCh. 18 - Prob. 18.21EPCh. 18 - Prob. 18.22EPCh. 18 - Prob. 18.23EPCh. 18 - Prob. 18.24EPCh. 18 - Prob. 18.25EPCh. 18 - Prob. 18.26EPCh. 18 - Prob. 18.27EPCh. 18 - Prob. 18.28EPCh. 18 - Prob. 18.29EPCh. 18 - Prob. 18.30EPCh. 18 - Prob. 18.31EPCh. 18 - Prob. 18.32EPCh. 18 - Prob. 18.33EPCh. 18 - Prob. 18.34EPCh. 18 - Draw the Fischer projection formula for each of...Ch. 18 - Prob. 18.36EPCh. 18 - Prob. 18.37EPCh. 18 - Prob. 18.38EPCh. 18 - Prob. 18.39EPCh. 18 - Prob. 18.40EPCh. 18 - Prob. 18.41EPCh. 18 - Prob. 18.42EPCh. 18 - Prob. 18.43EPCh. 18 - Prob. 18.44EPCh. 18 - Prob. 18.45EPCh. 18 - Prob. 18.46EPCh. 18 - Prob. 18.47EPCh. 18 - Prob. 18.48EPCh. 18 - Prob. 18.49EPCh. 18 - 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