(a) Interpretation: The structure of ( R )-alanine or enantiomer of ( S )-alanine needs to be drawn. Concept introduction: The R and S notational system is used for the organic compounds with a chiral center. As alanine has a chiral center, this classification can be used. In this classification, first thing is to assign priorities for each bonded group surrounding the stereocenter. The priorities are assigned by considering the atomic weight of the atom, which is directly connected to the chiral center, in each bonded group. When 2 atomic groups are having the same first atom, the atomic number of the second atom should be considered. Then the lowest priority group should be located in a backward direction, out of the plane of the page. Usually this lowest priority group is denoted with a dashed line. Then the remaining 1, 2, 3 priorities should be directed from lowest to highest. A counterclockwise direction is S configuration. A clockwise direction is R.

Question

Want to see the full answer?

Answer 1

Question

Chapter 15.7, Problem 15.18P

Interpretation Introduction

(a)

Interpretation:

The structure of ( R )-alanine or enantiomer of ( S )-alanine needs to be drawn.

Concept introduction:

The R and S notational system is used for the organic compounds with a chiral center. As alanine has a chiral center, this classification can be used.

In this classification, first thing is to assign priorities for each bonded group surrounding the stereocenter. The priorities are assigned by considering the atomic weight of the atom, which is directly connected to the chiral center, in each bonded group. When 2 atomic groups are having the same first atom, the atomic number of the second atom should be considered.

Then the lowest priority group should be located in a backward direction, out of the plane of the page. Usually this lowest priority group is denoted with a dashed line.

Then the remaining 1, 2, 3 priorities should be directed from lowest to highest. A counterclockwise direction is S configuration. A clockwise direction is R.

Interpretation Introduction

(b)

Interpretation:

The melting point of (R)-alanine needs to be determined.

Concept introduction:

Enantiomers are a part of stereoisomers. In chemistry, enantiomers are two stereoisomers that are mirror images of each other. As they are mirror images, they are non-superimposable which means not identical.

Interpretation Introduction

(c)

Interpretation:

The specific rotation of (R)-alanine needs to be determined.

Concept introduction:

Depending on the rotating side of the plane of polarized light a classification exits among optical isomers. If a molecule rotates the plane of polarized light to the right [clockwise, or (+)], it is classified as dextrorotatory (d) compound. In contrast, if a molecule rotates the plane of polarized light to the left [anti-clockwise, or (-)], it is classified as levorotatory (l) compound.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

5. A solution of sucrose is fermented in a vessel until the evolution of CO2 ceases. Then, the product solution is analyzed and found to contain, 45% ethanol; 5% acetic acid; and 15% glycerin by weight. If the original charge is 500 kg, evaluate; e. The ratio of sucrose to water in the original charge (wt/wt). f. Moles of CO2 evolved. g. Maximum possible amount of ethanol that could be formed. h. Conversion efficiency. i. Per cent excess of excess reactant. Reactions: Inversion reaction: C12H22O11 + H2O →2C6H12O6 Fermentation reaction: C6H12O6 →→2C2H5OH + 2CO2 Formation of acetic acid and glycerin: C6H12O6 + C2H5OH + H₂O→ CH3COOH + 2C3H8O3

Show work. don't give Ai generated solution. How many carbons and hydrogens are in the structure?

13. (11pts total) Consider the arrows pointing at three different carbon-carbon bonds in the molecule depicted below. Bond B 2°C. +2°C. cleavage Bond A •CH3 + 26.← Cleavage 2°C. + Bond C +3°C• CH3 2C Cleavage E 2°C. 26. weakest bond Intact molecule Strongest 3°C 20. Gund Largest argest a. (2pts) Which bond between A-C is weakest? Which is strongest? Place answers in appropriate boxes. C Weakest bond A Produces Most Bond Strongest Bond Strongest Gund produces least stable radicals Weakest Stable radical b. (4pts) Consider the relative stability of all cleavage products that form when bonds A, B, AND C are homolytically cleaved/broken. Hint: cleavage products of bonds A, B, and C are all carbon radicals. i. Which ONE cleavage product is the most stable? A condensed or bond line representation is fine. 13°C. formed in bound C cleavage ii. Which ONE cleavage product is the least stable? A condensed or bond line representation is fine. • CH3 methyl radical Formed in Gund A Cleavage c.…

Answer 2

Question

Chapter 15.7, Problem 15.18P

Interpretation Introduction

(a)

Interpretation:

The structure of ( R )-alanine or enantiomer of ( S )-alanine needs to be drawn.

Concept introduction:

The R and S notational system is used for the organic compounds with a chiral center. As alanine has a chiral center, this classification can be used.

In this classification, first thing is to assign priorities for each bonded group surrounding the stereocenter. The priorities are assigned by considering the atomic weight of the atom, which is directly connected to the chiral center, in each bonded group. When 2 atomic groups are having the same first atom, the atomic number of the second atom should be considered.

Then the lowest priority group should be located in a backward direction, out of the plane of the page. Usually this lowest priority group is denoted with a dashed line.

Then the remaining 1, 2, 3 priorities should be directed from lowest to highest. A counterclockwise direction is S configuration. A clockwise direction is R.

Interpretation Introduction

(b)

Interpretation:

The melting point of (R)-alanine needs to be determined.

Concept introduction:

Enantiomers are a part of stereoisomers. In chemistry, enantiomers are two stereoisomers that are mirror images of each other. As they are mirror images, they are non-superimposable which means not identical.

Interpretation Introduction

(c)

Interpretation:

The specific rotation of (R)-alanine needs to be determined.

Concept introduction:

Depending on the rotating side of the plane of polarized light a classification exits among optical isomers. If a molecule rotates the plane of polarized light to the right [clockwise, or (+)], it is classified as dextrorotatory (d) compound. In contrast, if a molecule rotates the plane of polarized light to the left [anti-clockwise, or (-)], it is classified as levorotatory (l) compound.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 3

Question

Chapter 15.7, Problem 15.18P

Interpretation Introduction

(a)

Interpretation:

The structure of ( R )-alanine or enantiomer of ( S )-alanine needs to be drawn.

Concept introduction:

The R and S notational system is used for the organic compounds with a chiral center. As alanine has a chiral center, this classification can be used.

In this classification, first thing is to assign priorities for each bonded group surrounding the stereocenter. The priorities are assigned by considering the atomic weight of the atom, which is directly connected to the chiral center, in each bonded group. When 2 atomic groups are having the same first atom, the atomic number of the second atom should be considered.

Then the lowest priority group should be located in a backward direction, out of the plane of the page. Usually this lowest priority group is denoted with a dashed line.

Then the remaining 1, 2, 3 priorities should be directed from lowest to highest. A counterclockwise direction is S configuration. A clockwise direction is R.

Interpretation Introduction

(b)

Interpretation:

The melting point of (R)-alanine needs to be determined.

Concept introduction:

Enantiomers are a part of stereoisomers. In chemistry, enantiomers are two stereoisomers that are mirror images of each other. As they are mirror images, they are non-superimposable which means not identical.

Interpretation Introduction

(c)

Interpretation:

The specific rotation of (R)-alanine needs to be determined.

Concept introduction:

Depending on the rotating side of the plane of polarized light a classification exits among optical isomers. If a molecule rotates the plane of polarized light to the right [clockwise, or (+)], it is classified as dextrorotatory (d) compound. In contrast, if a molecule rotates the plane of polarized light to the left [anti-clockwise, or (-)], it is classified as levorotatory (l) compound.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 4

Question

Chapter 15.7, Problem 15.18P

Interpretation Introduction

(a)

Interpretation:

The structure of ( R )-alanine or enantiomer of ( S )-alanine needs to be drawn.

Concept introduction:

The R and S notational system is used for the organic compounds with a chiral center. As alanine has a chiral center, this classification can be used.

In this classification, first thing is to assign priorities for each bonded group surrounding the stereocenter. The priorities are assigned by considering the atomic weight of the atom, which is directly connected to the chiral center, in each bonded group. When 2 atomic groups are having the same first atom, the atomic number of the second atom should be considered.

Then the lowest priority group should be located in a backward direction, out of the plane of the page. Usually this lowest priority group is denoted with a dashed line.

Then the remaining 1, 2, 3 priorities should be directed from lowest to highest. A counterclockwise direction is S configuration. A clockwise direction is R.

Interpretation Introduction

(b)

Interpretation:

The melting point of (R)-alanine needs to be determined.

Concept introduction:

Enantiomers are a part of stereoisomers. In chemistry, enantiomers are two stereoisomers that are mirror images of each other. As they are mirror images, they are non-superimposable which means not identical.

Interpretation Introduction

(c)

Interpretation:

The specific rotation of (R)-alanine needs to be determined.

Concept introduction:

Depending on the rotating side of the plane of polarized light a classification exits among optical isomers. If a molecule rotates the plane of polarized light to the right [clockwise, or (+)], it is classified as dextrorotatory (d) compound. In contrast, if a molecule rotates the plane of polarized light to the left [anti-clockwise, or (-)], it is classified as levorotatory (l) compound.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 5

Chapter 15.7, Problem 15.18P

Interpretation Introduction

(a)

Interpretation:

The structure of ( R )-alanine or enantiomer of ( S )-alanine needs to be drawn.

Concept introduction:

The R and S notational system is used for the organic compounds with a chiral center. As alanine has a chiral center, this classification can be used.

In this classification, first thing is to assign priorities for each bonded group surrounding the stereocenter. The priorities are assigned by considering the atomic weight of the atom, which is directly connected to the chiral center, in each bonded group. When 2 atomic groups are having the same first atom, the atomic number of the second atom should be considered.

Then the lowest priority group should be located in a backward direction, out of the plane of the page. Usually this lowest priority group is denoted with a dashed line.

Then the remaining 1, 2, 3 priorities should be directed from lowest to highest. A counterclockwise direction is S configuration. A clockwise direction is R.

Interpretation Introduction

(b)

Interpretation:

The melting point of (R)-alanine needs to be determined.

Concept introduction:

Enantiomers are a part of stereoisomers. In chemistry, enantiomers are two stereoisomers that are mirror images of each other. As they are mirror images, they are non-superimposable which means not identical.

Interpretation Introduction

(c)

Interpretation:

The specific rotation of (R)-alanine needs to be determined.

Concept introduction:

Depending on the rotating side of the plane of polarized light a classification exits among optical isomers. If a molecule rotates the plane of polarized light to the right [clockwise, or (+)], it is classified as dextrorotatory (d) compound. In contrast, if a molecule rotates the plane of polarized light to the left [anti-clockwise, or (-)], it is classified as levorotatory (l) compound.

Answer 6

Chapter 15.7, Problem 15.18P

Interpretation Introduction

(a)

Interpretation:

The structure of ( R )-alanine or enantiomer of ( S )-alanine needs to be drawn.

Concept introduction:

The R and S notational system is used for the organic compounds with a chiral center. As alanine has a chiral center, this classification can be used.

In this classification, first thing is to assign priorities for each bonded group surrounding the stereocenter. The priorities are assigned by considering the atomic weight of the atom, which is directly connected to the chiral center, in each bonded group. When 2 atomic groups are having the same first atom, the atomic number of the second atom should be considered.

Then the lowest priority group should be located in a backward direction, out of the plane of the page. Usually this lowest priority group is denoted with a dashed line.

Then the remaining 1, 2, 3 priorities should be directed from lowest to highest. A counterclockwise direction is S configuration. A clockwise direction is R.

Answer 7

Chapter 15.7, Problem 15.18P

Interpretation Introduction

(a)

Interpretation:

The structure of ( R )-alanine or enantiomer of ( S )-alanine needs to be drawn.

Concept introduction:

The R and S notational system is used for the organic compounds with a chiral center. As alanine has a chiral center, this classification can be used.

In this classification, first thing is to assign priorities for each bonded group surrounding the stereocenter. The priorities are assigned by considering the atomic weight of the atom, which is directly connected to the chiral center, in each bonded group. When 2 atomic groups are having the same first atom, the atomic number of the second atom should be considered.

Then the lowest priority group should be located in a backward direction, out of the plane of the page. Usually this lowest priority group is denoted with a dashed line.

Then the remaining 1, 2, 3 priorities should be directed from lowest to highest. A counterclockwise direction is S configuration. A clockwise direction is R.

Answer 8

Interpretation Introduction

(b)

Interpretation:

The melting point of (R)-alanine needs to be determined.

Concept introduction:

Enantiomers are a part of stereoisomers. In chemistry, enantiomers are two stereoisomers that are mirror images of each other. As they are mirror images, they are non-superimposable which means not identical.

Answer 9

Interpretation Introduction

(b)

Interpretation:

The melting point of (R)-alanine needs to be determined.

Concept introduction:

Enantiomers are a part of stereoisomers. In chemistry, enantiomers are two stereoisomers that are mirror images of each other. As they are mirror images, they are non-superimposable which means not identical.

Answer 10

Interpretation Introduction

(c)

Interpretation:

The specific rotation of (R)-alanine needs to be determined.

Concept introduction:

Depending on the rotating side of the plane of polarized light a classification exits among optical isomers. If a molecule rotates the plane of polarized light to the right [clockwise, or (+)], it is classified as dextrorotatory (d) compound. In contrast, if a molecule rotates the plane of polarized light to the left [anti-clockwise, or (-)], it is classified as levorotatory (l) compound.

Answer 11

Interpretation Introduction

(c)

Interpretation:

The specific rotation of (R)-alanine needs to be determined.

Concept introduction:

Depending on the rotating side of the plane of polarized light a classification exits among optical isomers. If a molecule rotates the plane of polarized light to the right [clockwise, or (+)], it is classified as dextrorotatory (d) compound. In contrast, if a molecule rotates the plane of polarized light to the left [anti-clockwise, or (-)], it is classified as levorotatory (l) compound.

Answer 12

Expert Solution & Answer

Answer 13

Expert Solution & Answer

Answer 14

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 15

Ch. 15.1 - Prob. 15.1P Ch. 15.1 - Prob. 15.1PP Ch. 15.1 - For trans-2-hexene: (a) draw a stereoisomer; (b)...Ch. 15.2 - Prob. 15.3P Ch. 15.2 - Prob. 15.4P Ch. 15.3 - Prob. 15.2PP Ch. 15.3 - Prob. 15.5P Ch. 15.3 - Prob. 15.6P Ch. 15.3 - Prob. 15.3PP Ch. 15.3 - Prob. 15.7P

Solution Summary: The author explains how the R and S notational system is used for organic compounds with a chiral center.

Want to see the full answer?

Chapter 15 Solutions