Question 1

Draw all the isomers with molecular formula C4H6.

Accepted Answer

Question 2

What is the percentage of the R enantiomer in a sample of carvone that has a specific rotation of 30, given that the specific rotation of (R)-carvone is −61?

Accepted Answer

A)  26% 
B)  51% 
C)  49% 
D)  75% 
A)  26% 
B)  51% 
C)  49% 
D)  75%

Question 3

When a racemic mixture is reacted with a single enantiomer of another compound, then a pair of _________ is formed.

Accepted Answer

A)  identical compounds 
B)  enantiomers 
C)  diastereomers 
D)  none of the above 
A)  identical compounds 
B)  enantiomers 
C)  diastereomers 
D)  none of the above

Question 4

Assign the following stereocenter as having the R or S absolute configuration.
SHAPE \* MERGEFORMAT

Accepted Answer

Neither -

Question 5

Which of the following is the correct structure for the compound (R)-2-pentanol?

Accepted Answer

A)  I 
B)  II 
C)  III 
D)  IV 
A)  I 
B)  II 
C)  III 
D)  IV

Question 6

Identify the relationship between the following two structures.

Accepted Answer

A)  enantiomers 
B)  identical 
C)  neither 
A)  enantiomers 
B)  identical 
C)  neither

Question 7

Is the following alkene E, Z, or neither?

Accepted Answer

The answer of Is the following alkene E, Z, or...

Question 8

Is the following alkene E, Z, or neither?

Accepted Answer

The answer of Is the following alkene E, Z, or...

Question 9

Does the following contain a plane of symmetry?

Accepted Answer

The answer of Does the following contain a plane of...

Question 10

What is the relationship between the following two molecules?

Accepted Answer

A)  enantiomers 
B)  diastereomers 
C)  identical 
D)  constitutional Isomers 
A)  enantiomers 
B)  diastereomers 
C)  identical 
D)  constitutional Isomers

Question 11

Draw the meso isomer of the following compound.

Accepted Answer

The answer of Draw the meso isomer of the following...

Question 12

What is the percentage of the S enantiomer in a sample of carvone that has a specific rotation of 10, given that the specific rotation of (R)-carvone is −61?

Accepted Answer

A)  42 
B)  84 
C)  16 
D)  58 
A)  42 
B)  84 
C)  16 
D)  58

Question 13

Draw all the stereoisomers of the following compound.

Accepted Answer

The answer of Draw all the stereoisomers of the following...

Question 14

What is the % ee of a sample of carvone that exhibits a specific rotation of −20, given that the specific rotation of (R)-carvone is −61?

Accepted Answer

The answer of What is the % ee of a...

Question 15

Is the following alkene cis, trans, or neither?

Accepted Answer

The answer of Is the following alkene cis, trans, or...

Question 16

Which of the following choices is a diastereomer of the first structure shown?

Accepted Answer

A)  I 
B)  II 
C)  III 
D)  IV 
A)  I 
B)  II 
C)  III 
D)  IV

Question 17

Assign the absolute configuration of the chirality center as R or S.

Accepted Answer

The answer of Assign the absolute configuration of the chirality...

Question 18

Which of the following structures is the correct wedge/dash drawing of the following Fischer projection?

Accepted Answer

A)  I 
B)  II 
C)  III 
D)  IV 
A)  I 
B)  II 
C)  III 
D)  IV

Question 19

What is the percentage of the R enantiomer in a sample of carvone that has a specific rotation of −20, given that the specific rotation of (R)-carvone is −61?

Accepted Answer

A)  20% 
B)  66.5% 
C)  33.5% 
D)  61% 
A)  20% 
B)  66.5% 
C)  33.5% 
D)  61%

Question 20

What is the relationship between the following two compounds?

Accepted Answer

A)  constitutional isomers 
B)  stereoisomers 
C)  identical 
D)  not isomers; different compounds entirely 
A)  constitutional isomers 
B)  stereoisomers 
C)  identical 
D)  not isomers; different compounds entirely

Exam 5: Stereoisomerism

Draw all the isomers with molecular formula C4H6.

What is the percentage of the R enantiomer in a sample of carvone that has a specific rotation of 30, given that the specific rotation of (R)-carvone is −61?

When a racemic mixture is reacted with a single enantiomer of another compound, then a pair of _________ is formed.

Assign the following stereocenter as having the R or S absolute configuration. SHAPE \* MERGEFORMAT

Which of the following is the correct structure for the compound (R)-2-pentanol?

Identify the relationship between the following two structures.

Is the following alkene E, Z, or neither?

Is the following alkene E, Z, or neither?

Does the following contain a plane of symmetry?

What is the relationship between the following two molecules?

Draw the meso isomer of the following compound.

What is the percentage of the S enantiomer in a sample of carvone that has a specific rotation of 10, given that the specific rotation of (R)-carvone is −61?

Draw all the stereoisomers of the following compound.

What is the % ee of a sample of carvone that exhibits a specific rotation of −20, given that the specific rotation of (R)-carvone is −61?

Is the following alkene cis, trans, or neither?

Which of the following choices is a diastereomer of the first structure shown?

Assign the absolute configuration of the chirality center as R or S.

Which of the following structures is the correct wedge/dash drawing of the following Fischer projection?

What is the percentage of the R enantiomer in a sample of carvone that has a specific rotation of −20, given that the specific rotation of (R)-carvone is −61?

What is the relationship between the following two compounds?

A Review of General Chemistry: Electrons, Bonds, and Molecular Properties

Molecular Representations

Acids and Bases

Alkanes and Cycloalkanes

Chemical Reactivity and Mechanisms

Alkyl Halides: Nucleophilic Substitution and Elimination Reactions

Addition Reactions of Alkenes

Alkynes

Radical Reactions

Synthesis

Alcohols and Phenols

Ethers and Epoxides; Thiols and Sulfides

Infrared Spectroscopy and Mass Spectrometry

Nuclear Magnetic Resonance Spectroscopy

Conjugated Pi Systems and Pericyclic Reactions

Aromatic Compounds

Aromatic Substitution Reactions

Aldehydes and Ketones

Carboxylic Acids and Their Derivatives

Alpha Carbon Chemistry: Enols and Enolates

Amines

Introduction to Organometallic Compounds

Carbohydrates

Amino Acids, Peptides, and Proteins

Lipids

Synthetic Polymers

Filters

Draw all the isomers with molecular formula C₄H₆.