Question 1

Draw the other important resonance form of:

Accepted Answer

The answer of Draw the other important resonance form of:...

Question 2

In the reaction below, label each reactant as a nucleophile or an electrophile.

Accepted Answer

CH₃NH₂, nucl

Question 3

Draw a line-angle formula for (CH3)2CHCH2CH2NH2.

Accepted Answer

Question 4

Compute the empirical and molecular formulas for the compound of molecular weight 180 g/mol which is shown to contain 40.0% C and 6.7% H by elemental analysis.

Accepted Answer

The empirical formul

Question 5

Draw 3 significant resonance structures for the compound shown below. Place a box around the major contributor. Fill in any missing formal charges.

Accepted Answer

The answer of Draw 3 significant resonance structures for the...

Question 6

A sample of compound X is subjected to elemental analysis and the following percentages by weight are found: 39.97% C, 6.73% H, and 53.30% O. The molecular weight of X is 90. What is the empirical formula of X?

Accepted Answer

A)  C6HO8 
B)  C2H4O2 
C)  C4H10O2 
D)  C3H6O3 
E)  CH2O 
A)  C6HO8 
B)  C2H4O2 
C)  C4H10O2 
D)  C3H6O3 
E)  CH2O

Question 7

Consider the species CH3O-, NH2-, and CH3COO-. Rank these ions in order of increasing basicity, and explain your rationale.

Accepted Answer

CH₃COO^- < CH₃O^- < NH₂^- The first factor to con

Question 8

Provide the electron configuration of phosphorus.

Accepted Answer

The answer of Provide the electron configuration of phosphorus....

Question 9

The atomic number of boron is 5. The correct electronic configuration of boron is:

Accepted Answer

A)  1s22s3 
B)  1s22p3 
C)  1s22s22p1 
D)  2s22p3 
E)  1s22s23s1 
A)  1s22s3 
B)  1s22p3 
C)  1s22s22p1 
D)  2s22p3 
E)  1s22s23s1

Question 10

Draw a correct Lewis structure for CH3CHCHCOOH.

Accepted Answer

Question 11

Write a completed equation for the acid-base pair shown below.
HCN + NaOH →

Accepted Answer

HCN + NaOH

Question 12

The formal charge on oxygen in dimethyl ether, CH3OCH3, is ________.

Accepted Answer

A)  +2 
B)  +1 
C)  0 
D)  -1 
E)  -2 
A)  +2 
B)  +1 
C)  0 
D)  -1 
E)  -2

Question 13

Draw the important resonance forms of the structure below to indicate the delocalization of charge. Indicate which is the major contributor to the overall structure.

Accepted Answer

@#IMG-DLM& The last structure

Question 14

Consider the set of compounds, NH3, HF, and H2O. Rank these compounds in order of increasing acidity and discuss your rationale.

Accepted Answer

NH₃ < H₂O < HF When determining relative a

Question 15

Which proton is the most acidic in the compound below?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  They are all the same acidity. 
A)  1 
B)  2 
C)  3 
D)  They are all the same acidity.

Question 16

How many hydrogen atoms are present in the molecule shown?

Accepted Answer

The answer of How many hydrogen atoms are present in...

Question 17

Draw the Lewis structure of acetic acid, CH3CO2H, including all non-bonding lone pairs.

Accepted Answer

Question 18

Complete the following acid/base reaction and use pKa or pKb values to predict whether the equilibrium will favor the reactants or products:

Accepted Answer

@#IMG-DLM& The stronger acid and the str

Question 19

Draw additional resonance contributors for:

Accepted Answer

The answer of Draw additional resonance contributors for:  ...

Question 20

How many carbon atoms are present in the molecule shown?

Accepted Answer

A)  6 
B)  8 
C)  10 
D)  11 
E)  12 
A)  6 
B)  8 
C)  10 
D)  11 
E)  12

Exam 1: Structure and Bonding

Draw the other important resonance form of:

In the reaction below, label each reactant as a nucleophile or an electrophile.

Draw a line-angle formula for (CH3)2CHCH2CH2NH2.

Compute the empirical and molecular formulas for the compound of molecular weight 180 g/mol which is shown to contain 40.0% C and 6.7% H by elemental analysis.

Draw 3 significant resonance structures for the compound shown below. Place a box around the major contributor. Fill in any missing formal charges.

A sample of compound X is subjected to elemental analysis and the following percentages by weight are found: 39.97% C, 6.73% H, and 53.30% O. The molecular weight of X is 90. What is the empirical formula of X?

Consider the species CH3O-, NH2-, and CH3COO-. Rank these ions in order of increasing basicity, and explain your rationale.

Provide the electron configuration of phosphorus.

The atomic number of boron is 5. The correct electronic configuration of boron is:

Draw a correct Lewis structure for CH3CHCHCOOH.

Write a completed equation for the acid-base pair shown below. HCN + NaOH →

The formal charge on oxygen in dimethyl ether, CH3OCH3, is ________.

Draw the important resonance forms of the structure below to indicate the delocalization of charge. Indicate which is the major contributor to the overall structure.

Consider the set of compounds, NH3, HF, and H2O. Rank these compounds in order of increasing acidity and discuss your rationale.

Which proton is the most acidic in the compound below?

How many hydrogen atoms are present in the molecule shown?

Draw the Lewis structure of acetic acid, CH3CO2H, including all non-bonding lone pairs.

Complete the following acid/base reaction and use pKa or pKb values to predict whether the equilibrium will favor the reactants or products:

Draw additional resonance contributors for:

How many carbon atoms are present in the molecule shown?

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

Lipids

Synthetic Polymers

Filters

Draw a line-angle formula for (CH₃)₂CHCH₂CH₂NH₂.

Consider the species CH₃O^-, NH₂^-, and CH₃COO^-. Rank these ions in order of increasing basicity, and explain your rationale.

Draw a correct Lewis structure for CH₃CHCHCOOH.

The formal charge on oxygen in dimethyl ether, CH₃OCH₃, is ________.

Consider the set of compounds, NH₃, HF, and H₂O. Rank these compounds in order of increasing acidity and discuss your rationale.

Draw the Lewis structure of acetic acid, CH₃CO₂H, including all non-bonding lone pairs.