Question 1

What occurs when an aqueous solution of sodium stearate is treated with a solution of calcium ions?

Accepted Answer

Calcium stearate, an insoluble salt, precipitates.

Question 2

Provide the major organic product of the following reaction sequence.

Accepted Answer

CH₃(CH₂)₁₄CO₂CH₂(CH₂)₁₄CH₃

Question 3

Which of the following terms best describes the compound below?

Accepted Answer

A)  a wax 
B)  a saturated triglyceride 
C)  a terpene 
D)  a prostaglandin 
E)  a lecithin 
A)  a wax 
B)  a saturated triglyceride 
C)  a terpene 
D)  a prostaglandin 
E)  a lecithin B

Question 4

Which of the following fatty acids has the highest melting point?

Accepted Answer

A)  lauric acid 
B)  myristic acid 
C)  palmitic acid 
D)  stearic acid 
E)  linoleic acid 
A)  lauric acid 
B)  myristic acid 
C)  palmitic acid 
D)  stearic acid 
E)  linoleic acid

Question 5

Which reagent below could best be used to distinguish   from

Accepted Answer

A)  NaOH, H2O 
B)  Ag(NH3)2+ 
C)  H2Cr2O7 
D)  Br2/CCl4 
E)  NH3 
A)  NaOH, H2O 
B)  Ag(NH3)2+ 
C)  H2Cr2O7 
D)  Br2/CCl4 
E)  NH3

Question 6

The following natural product has been examined for cytotoxic activity. How should this natural product be classified?

Accepted Answer

A)  monoterpene 
B)  sesquiterpene 
C)  diterpene 
D)  triterpene 
A)  monoterpene 
B)  sesquiterpene 
C)  diterpene 
D)  triterpene

Question 7

Why do soaps work poorly in hard water?

Accepted Answer

Hard water contains reasonably

Question 8

Which of the following is an unsaturated fatty acid?

Accepted Answer

A)  adipic acid 
B)  linoleic acid 
C)  stearic acid 
D)  palmitic acid 
E)  oxalic acid 
A)  adipic acid 
B)  linoleic acid 
C)  stearic acid 
D)  palmitic acid 
E)  oxalic acid

Question 9

If triolein (oleic acid: CH3(CH2)7CH   
CH(CH2)7COOH) was reacted with hydrogen in the presence of a transition metal catalyst, what would the new product be and how would the properties of the new compound be different from triolein?

Accepted Answer

The new product would be trist

Question 10

What reagent is needed to convert CH3(CH2)14CO2H to CH3(CH2)14CH2OH?

Accepted Answer

Question 11

________ is the base-promoted hydrolysis of fats and oils.

Accepted Answer

The answer of ________ is the base-promoted hydrolysis of fats...

Question 12

Which of the following structural features is not typically found in a prostaglandin?

Accepted Answer

A)  a carboxyl group 
B)  a 5-membered ring 
C)  a hydroxyl group 
D)  a carbon-carbon double bond 
E)  an amino group 
A)  a carboxyl group 
B)  a 5-membered ring 
C)  a hydroxyl group 
D)  a carbon-carbon double bond 
E)  an amino group

Question 13

Which of the following terms best describes terpenes?

Accepted Answer

A)  nonpolar 
B)  ionic 
C)  protein 
D)  carbohydrate 
E)  nucleic acid 
A)  nonpolar 
B)  ionic 
C)  protein 
D)  carbohydrate 
E)  nucleic acid

Question 14

What does the term polyunsaturated mean when used to describe a triglyceride?

Accepted Answer

This term indicates the presen

Question 15

Lauric acid has the formula CH3(CH2)10CO2H. Provide the structure of the triglyceride which was formed from three equivalents of lauric acid.

Accepted Answer

Question 16

Draw the structure of the product which results when the compound shown below is completely hydrogenated using excess H2.

Accepted Answer

Question 17

Was the compound shown below more likely isolated from an animal or a plant? Explain.

Accepted Answer

The compound shown is a polyun

Question 18

When spermaceti is heated in aqueous potassium hydroxide,   
and   
are formed. Provide the structure of spermaceti.

Accepted Answer

The answer of When spermaceti is heated in aqueous potassium...

Question 19

Oleic acid is an example of ________ fatty acid. A molecule of oleic acid contains a single carbon-carbon double bond and ________ carbon atoms.

Accepted Answer

A)  an unsaturated; 18 
B)  an unsaturated; 9 
C)  a saturated; 52 
D)  a saturated; 18 
E)  a saturated; 9 
A)  an unsaturated; 18 
B)  an unsaturated; 9 
C)  a saturated; 52 
D)  a saturated; 18 
E)  a saturated; 9

Question 20

Which of the following terms best describes the interior of a soap micelle in water?

Accepted Answer

A)  hydrophobic 
B)  hydrophilic 
C)  hard 
D)  saponified 
E)  hydrogenated 
A)  hydrophobic 
B)  hydrophilic 
C)  hard 
D)  saponified 
E)  hydrogenated

Exam 25: Lipids

What occurs when an aqueous solution of sodium stearate is treated with a solution of calcium ions?

Provide the major organic product of the following reaction sequence.

Which of the following terms best describes the compound below?

Which of the following fatty acids has the highest melting point?

Which reagent below could best be used to distinguish from

The following natural product has been examined for cytotoxic activity. How should this natural product be classified?

Why do soaps work poorly in hard water?

Which of the following is an unsaturated fatty acid?

If triolein (oleic acid: CH3(CH2)7CH CH(CH2)7COOH) was reacted with hydrogen in the presence of a transition metal catalyst, what would the new product be and how would the properties of the new compound be different from triolein?

What reagent is needed to convert CH3(CH2)14CO2H to CH3(CH2)14CH2OH?

________ is the base-promoted hydrolysis of fats and oils.

Which of the following structural features is not typically found in a prostaglandin?

Which of the following terms best describes terpenes?

What does the term polyunsaturated mean when used to describe a triglyceride?

Lauric acid has the formula CH3(CH2)10CO2H. Provide the structure of the triglyceride which was formed from three equivalents of lauric acid.

Draw the structure of the product which results when the compound shown below is completely hydrogenated using excess H2.

Was the compound shown below more likely isolated from an animal or a plant? Explain.

When spermaceti is heated in aqueous potassium hydroxide, and are formed. Provide the structure of spermaceti.

Oleic acid is an example of ________ fatty acid. A molecule of oleic acid contains a single carbon-carbon double bond and ________ carbon atoms.

Which of the following terms best describes the interior of a soap micelle in water?

Structure and Bonding

Acids and Bases; Functional Groups

Structure and Stereochemistry of Alkanes

The Study of Chemical Reactions

Stereochemistry

Alkyl Halides; Nucleophilic Substitution

Structure and Synthesis of Alkenes; Elimination

Reactions of Alkenes

Structure and Synthesis of Alcohols

Reactions of Alcohols

Infrared Spectroscopy and Mass Spectrometry

Nuclear Magnetic Resonance Spectroscopy

Ethers, Epoxides, and Thioethers

Conjugated Systems, Orbital Symmetry, and Ultraviolet Spectroscopy

Aromatic Compounds

Reactions of Aromatic Compounds

Ketones and Aldehydes

Amines

Carboxylic Acids

Carboxylic Acid Derivatives

Condensations and Alpha Substitutions of Carboxyl Compounds

Carbohydrates and Nucleic Acids

Amino Acids, Peptides, and Proteins

Synthetic Polymers

Filters

If triolein (oleic acid: CH₃(CH₂)₇CH CH(CH₂)₇COOH) was reacted with hydrogen in the presence of a transition metal catalyst, what would the new product be and how would the properties of the new compound be different from triolein?

What reagent is needed to convert CH₃(CH₂)₁₄CO₂H to CH₃(CH₂)₁₄CH₂OH?

Lauric acid has the formula CH₃(CH₂)₁₀CO₂H. Provide the structure of the triglyceride which was formed from three equivalents of lauric acid.

Draw the structure of the product which results when the compound shown below is completely hydrogenated using excess H₂.

Oleic acid is an example of fatty acid. A molecule of oleic acid contains a single carbon-carbon double bond and carbon atoms.