The percent of (R)-isomer present in the given sample of (S)-(+)-lactic acid has to be calculated. Concept introduction: The pair of Enantiomers has different configurations. Pair of enantiomers has different optical activity, which means if one will show levorotatory then the other will show dextrorotatory. The direction and magnitude of rotation of plane-polarized light by an optically compound is measured by using polarimeter . This rotation of polarized light is specific for a compound at specified temperature and wavelength, so it is called as Specific rotation of that compound. The specific rotation of enantiomers has equal magnitudes and opposite signs. Racemic mixture (equal amounts of enantiomers) of a compound has zero specific rotation.

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Answer 1

Question

Chapter 4, Problem 96P

Interpretation Introduction

Interpretation:

The percent of (R)-isomer present in the given sample of (S)-(+)-lactic acid has to be calculated.

Concept introduction:

The pair of Enantiomers has different configurations.

Pair of enantiomers has different optical activity, which means if one will show levorotatory then the other will show dextrorotatory.

The direction and magnitude of rotation of plane-polarized light by an optically compound is measured by using polarimeter.

This rotation of polarized light is specific for a compound at specified temperature and wavelength, so it is called as Specific rotation of that compound.

The specific rotation of enantiomers has equal magnitudes and opposite signs.

Racemic mixture (equal amounts of enantiomers) of a compound has zero specific rotation.

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Answer 2

Question

Chapter 4, Problem 96P

Interpretation Introduction

Interpretation:

The percent of (R)-isomer present in the given sample of (S)-(+)-lactic acid has to be calculated.

Concept introduction:

The pair of Enantiomers has different configurations.

Pair of enantiomers has different optical activity, which means if one will show levorotatory then the other will show dextrorotatory.

The direction and magnitude of rotation of plane-polarized light by an optically compound is measured by using polarimeter.

This rotation of polarized light is specific for a compound at specified temperature and wavelength, so it is called as Specific rotation of that compound.

The specific rotation of enantiomers has equal magnitudes and opposite signs.

Racemic mixture (equal amounts of enantiomers) of a compound has zero specific rotation.

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Answer 3

Question

Chapter 4, Problem 96P

Interpretation Introduction

Interpretation:

The percent of (R)-isomer present in the given sample of (S)-(+)-lactic acid has to be calculated.

Concept introduction:

The pair of Enantiomers has different configurations.

Pair of enantiomers has different optical activity, which means if one will show levorotatory then the other will show dextrorotatory.

The direction and magnitude of rotation of plane-polarized light by an optically compound is measured by using polarimeter.

This rotation of polarized light is specific for a compound at specified temperature and wavelength, so it is called as Specific rotation of that compound.

The specific rotation of enantiomers has equal magnitudes and opposite signs.

Racemic mixture (equal amounts of enantiomers) of a compound has zero specific rotation.

Expert Solution & Answer

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Answer 4

Question

Chapter 4, Problem 96P

Interpretation Introduction

Interpretation:

The percent of (R)-isomer present in the given sample of (S)-(+)-lactic acid has to be calculated.

Concept introduction:

The pair of Enantiomers has different configurations.

Pair of enantiomers has different optical activity, which means if one will show levorotatory then the other will show dextrorotatory.

The direction and magnitude of rotation of plane-polarized light by an optically compound is measured by using polarimeter.

This rotation of polarized light is specific for a compound at specified temperature and wavelength, so it is called as Specific rotation of that compound.

The specific rotation of enantiomers has equal magnitudes and opposite signs.

Racemic mixture (equal amounts of enantiomers) of a compound has zero specific rotation.

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Answer 5

Chapter 4, Problem 96P

Interpretation Introduction

Interpretation:

The percent of (R)-isomer present in the given sample of (S)-(+)-lactic acid has to be calculated.

Concept introduction:

The pair of Enantiomers has different configurations.

Pair of enantiomers has different optical activity, which means if one will show levorotatory then the other will show dextrorotatory.

The direction and magnitude of rotation of plane-polarized light by an optically compound is measured by using polarimeter.

This rotation of polarized light is specific for a compound at specified temperature and wavelength, so it is called as Specific rotation of that compound.

The specific rotation of enantiomers has equal magnitudes and opposite signs.

Racemic mixture (equal amounts of enantiomers) of a compound has zero specific rotation.

Answer 6

Chapter 4, Problem 96P

Interpretation Introduction

Interpretation:

The percent of (R)-isomer present in the given sample of (S)-(+)-lactic acid has to be calculated.

Concept introduction:

The pair of Enantiomers has different configurations.

Pair of enantiomers has different optical activity, which means if one will show levorotatory then the other will show dextrorotatory.

The direction and magnitude of rotation of plane-polarized light by an optically compound is measured by using polarimeter.

This rotation of polarized light is specific for a compound at specified temperature and wavelength, so it is called as Specific rotation of that compound.

The specific rotation of enantiomers has equal magnitudes and opposite signs.

Racemic mixture (equal amounts of enantiomers) of a compound has zero specific rotation.

Answer 7

Chapter 4, Problem 96P

Interpretation Introduction

Interpretation:

The percent of (R)-isomer present in the given sample of (S)-(+)-lactic acid has to be calculated.

Concept introduction:

The pair of Enantiomers has different configurations.

Pair of enantiomers has different optical activity, which means if one will show levorotatory then the other will show dextrorotatory.

The direction and magnitude of rotation of plane-polarized light by an optically compound is measured by using polarimeter.

This rotation of polarized light is specific for a compound at specified temperature and wavelength, so it is called as Specific rotation of that compound.

The specific rotation of enantiomers has equal magnitudes and opposite signs.

Racemic mixture (equal amounts of enantiomers) of a compound has zero specific rotation.

Answer 8

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Answer 9

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Answer 10

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Answer 11

Ch. 4.1 - Prob. 2P Ch. 4.1 - Prob. 3P Ch. 4.1 - Prob. 4P Ch. 4.1 - Prob. 5P Ch. 4.1 - Which of the roll owing compounds have a dipole...Ch. 4.2 - Draw and label the E and Z isomers for each of the...Ch. 4.2 - Assign relative priorities to each set of...Ch. 4.2 - Tamoxifen slows the growth of some breast tumors...Ch. 4.2 - Prob. 10P Ch. 4.2 - Name each of the following:

Solution Summary: The author explains that the percent of (R)-isomer present in the given sample of lactic acid has to be calculated.

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Chapter 4 Solutions