Question 1

The structure of uracil is shown below. What is the molecular shape of the nitrogens?

Accepted Answer

Both are trigonal pl

Question 2

The CCN bond angle in acrylonitrile (CH2=CHCN) is approximately ________.

Accepted Answer

A)  60° 
B)  90° 
C)  109.5° 
D)  120° 
E)  180° 
A)  60° 
B)  90° 
C)  109.5° 
D)  120° 
E)  180°

Question 3

Provide the hybridization of oxygen in acetaldehyde (CH3CHO) and estimate the OCH bond angle.

Accepted Answer

The hybridization of

Question 4

Provide the condensed structures of two structurally isomeric amines that contain two carbons.

Accepted Answer

The answer of Provide the condensed structures of two structurally...

Question 5

Are the two compounds shown below best described as cis-trans isomers, constitutional isomers, or not isomeric?

Accepted Answer

constituti

Question 6

The HCN bond angle in hydrogen cyanide (HCN) is ________.

Accepted Answer

The answer of The HCN bond angle in hydrogen cyanide...

Question 7

What is the approximate value of the CCC bond angle in CH3C≡CCH3?

Accepted Answer

Question 8

Are the two compounds shown below best described as cis-trans isomers, constitutional isomers, or not isomeric?

Accepted Answer

The answer of Are the two compounds shown below best...

Question 9

Explain why the pKa of acetylene is 25, while that of ethene is 44.
HC   
CH vs H2C   
CH2
acetylene ethene

Accepted Answer

The hybridization of the C in acetylene

Question 10

The structure of Tamiflu, an antiinfluenza drug, is shown below (Organic Lett. 2007, 259). Circle and identify each functional group in Tamiflu.

Accepted Answer

The answer of The structure of Tamiflu, an antiinfluenza drug,...

Question 11

A ________ bond results when parallel p orbitals overlap sideways.

Accepted Answer

A pi (π) bond result

Question 12

Anisole, the compound shown below, is an example of ________.

Accepted Answer

A)  an ester 
B)  an ether 
C)  an alcohol 
D)  an aldehyde 
E)  a ketone 
A)  an ester 
B)  an ether 
C)  an alcohol 
D)  an aldehyde 
E)  a ketone

Question 13

Would you expect sodium chloride (NaCl) to be highly soluble in the organic solvent hexane   
Briefly explain your answer.

Accepted Answer

One would not expect NaCl to be highly s

Question 14

Which of the labeled atoms in the following structure are sp2 hybridized?

Accepted Answer

A)  1 & 4 
B)  2 & 5 
C)  2 & 4 
D)  2 & 3 
E)  2, 3, & 4 
A)  1 & 4 
B)  2 & 5 
C)  2 & 4 
D)  2 & 3 
E)  2, 3, & 4

Question 15

Use the following structure for the two questions below.
Saquinavir Structure  
-Which functional group occurs more than two times in the structure of the HIV protease inhibitor drug called Saquinavir?

Accepted Answer

A)  ketone 
B)  carboxylic acid 
C)  amine 
D)  amide 
E)  alkene 
A)  ketone 
B)  carboxylic acid 
C)  amine 
D)  amide 
E)  alkene

Question 16

Provide the hybridization of oxygen in dimethyl ether (CH3OCH3) and estimate the COC bond angle.

Accepted Answer

The hybridization of

Question 17

Which sequence ranks the following isomers in order of increasing boiling points?

Accepted Answer

A)  2<1<3 
B)  2<3<1 
C)  3<1<2 
D)  3<2<1 
A)  2<1<3 
B)  2<3<1 
C)  3<1<2 
D)  3<2<1

Question 18

Which of the following has the highest boiling point?

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 19

What is the approximate value of any HCC bond angle in H2C=CHCCl3?

Accepted Answer

Question 20

Provide the skeletal structures of the five constitutional isomers with molecular formula C6H14.

Accepted Answer

Exam 2: Acids and Bases; Functional Groups

The structure of uracil is shown below. What is the molecular shape of the nitrogens?

The CCN bond angle in acrylonitrile (CH2=CHCN) is approximately ________.

Provide the hybridization of oxygen in acetaldehyde (CH3CHO) and estimate the OCH bond angle.

Provide the condensed structures of two structurally isomeric amines that contain two carbons.

Are the two compounds shown below best described as cis-trans isomers, constitutional isomers, or not isomeric?

The HCN bond angle in hydrogen cyanide (HCN) is ________.

What is the approximate value of the CCC bond angle in CH3C≡CCH3?

Are the two compounds shown below best described as cis-trans isomers, constitutional isomers, or not isomeric?

Explain why the pKa of acetylene is 25, while that of ethene is 44. HC CH vs H2C CH2 acetylene ethene

The structure of Tamiflu, an antiinfluenza drug, is shown below (Organic Lett. 2007, 259). Circle and identify each functional group in Tamiflu.

A ________ bond results when parallel p orbitals overlap sideways.

Anisole, the compound shown below, is an example of ________.

Would you expect sodium chloride (NaCl) to be highly soluble in the organic solvent hexane Briefly explain your answer.

Which of the labeled atoms in the following structure are sp2 hybridized?

Use the following structure for the two questions below. Saquinavir Structure -Which functional group occurs more than two times in the structure of the HIV protease inhibitor drug called Saquinavir?

Provide the hybridization of oxygen in dimethyl ether (CH3OCH3) and estimate the COC bond angle.

Which sequence ranks the following isomers in order of increasing boiling points?

Which of the following has the highest boiling point?

What is the approximate value of any HCC bond angle in H2C=CHCCl3?

Provide the skeletal structures of the five constitutional isomers with molecular formula C6H14.

Structure and Bonding

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

Lipids

Synthetic Polymers

Filters

The CCN bond angle in acrylonitrile (CH₂=CHCN) is approximately ________.

Provide the hybridization of oxygen in acetaldehyde (CH₃CHO) and estimate the OCH bond angle.

What is the approximate value of the CCC bond angle in CH₃C≡CCH₃?

Explain why the pKa of acetylene is 25, while that of ethene is 44. HC CH vs H₂C CH₂ acetylene ethene

Which of the labeled atoms in the following structure are sp² hybridized?

Provide the hybridization of oxygen in dimethyl ether (CH₃OCH₃) and estimate the COC bond angle.

What is the approximate value of any HCC bond angle in H₂C=CHCCl₃?

Provide the skeletal structures of the five constitutional isomers with molecular formula C₆H₁₄.