WebAssign is not supported for this browser version. Some features or content might not work. System requirements

WebAssign

Welcome, demo@demo

(sign out)

Monday, March 17, 2025 18:13 EDT

Home My Assignments Grades Communication Calendar My eBooks

Hornback - Organic Chemistry 2/e (Homework)

James Finch

Chemistry - College, section 1, Fall 2019

Instructor: Dr. Friendly

Current Score : 7 / 15

Due : Thursday, October 10, 2019 08:00 EDT

Last Saved : n/a Saving...  ()

Print Assignment
Question
Points
1 2 3 4 5 6
–/7 –/1 –/1 –/2 –/2 –/1
Total
7/15 (46.7%)

  • Instructions

    Here are some textbook questions from Organic Chemistry 2/e by Joe Hornback published by Brooks/Cole. Click here for a list of all of the questions coded in WebAssign. This demo assignment allows many submissions and allows you to try another version of the same question for practice.

Assignment Submission

For this assignment, you submit answers by question parts. The number of submissions remaining for each question part only changes if you submit or change the answer.

Assignment Scoring

Your last submission is used for your score.

1. –/7 points Hornback2 3.P.001. My Notes
Question Part
Points
Submissions Used
1 2 3 4 5 6 7
–/1 –/1 –/1 –/1 –/1 –/1 –/1
0/50 0/50 0/50 0/50 0/50 0/50 0/50
Total
–/7
 
Below are the structures for benzonitrile, nicotine and caffeine. Each atom obeys the octet rule (duet for hydrogen) and no atom possesses a formal charge.
**missing image**
(a) What is the total number of hydrogens in the nicotine molecule?
(No Response)

(b) What is the total number of lone pairs in the caffeine molecule?
(No Response)

(c) What is the molecular formula for caffeine?

chemPad

Help

 

(d) In the nicotine molecule the approximate angle about
the nitrogen bonded to
a methyl group (CH3-) is: 		the other nitrogen
(the one that has a double bond) is:
    
    


(e) In the benzonitrile molecule there are how many of the following?
pi bonds(No Response)
sigma bonds(No Response)
Your work in question(s) will also be submitted or saved.
Viewing Saved Work Revert to Last Response
2. –/1 points Hornback2 6.P.018. My Notes
Question Part
Points
Submissions Used
1 2
–/0 –/1
0/50 0/50
Total
–/1
 
Open the editor and manipulate the structure in 3D, then answer the following questions. One of the substituents is a methyl group and the other is a chlorine.
(a) Write the name using the IUPAC substitutive nomenclature convention.
(No Response)
(b) Is this the most stable conformation?
    
Your work in question(s) will also be submitted or saved.
Viewing Saved Work Revert to Last Response
3. –/1 points Hornback2 6.P.013. My Notes
Question Part
Points
Submissions Used
1
–/1
0/50
Total
–/1
 
Draw the skeletal structure for cis-1-chloro-3-methylcyclopentane. (Hint: Make sure the tapered end, i.e. the thin end, of the wedge bond is attached to the parent.)
(No Response)
Your work in question(s) will also be submitted or saved.
Viewing Saved Work Revert to Last Response
4. –/2 points Hornback2 2.P.003. My Notes
Question Part
Points
Submissions Used
1 2
–/1 –/1
0/50 0/50
Total
–/2
 
Draw the skeletal structure, where each atom obeys the octet/duet rule and no atom possesses a formal charge, for the molecule whose condensed structure is given below.
(a) (CH3)3CCH2CHC(CH3)2
(No Response)

(b) (CH3)2CHCHCHC(CH3)3
(No Response)
Your work in question(s) will also be submitted or saved.
Viewing Saved Work Revert to Last Response
5. –/2 points Hornback2 5.P.003. My Notes
Question Part
Points
Submissions Used
1 2
–/1 –/1
0/50 0/50
Total
–/2
 
Draw the structure for the molecule that fits the following description and then name it according to IUPAC formalism.
a constitutional isomer of nonane
contains 5 methyl groups
contains 2 methylene groups
contains 1 methine group (methine C is the 2nd C of the parent chain)
contains 1 quaternary C (quaternary C is the 4th C of the parent chain)
structure
(No Response)
name
(No Response)
Your work in question(s) will also be submitted or saved.
Viewing Saved Work Revert to Last Response
6. –/1 points Hornback2 8.P.004. My Notes
Question Part
Points
Submissions Used
1
–/1
0/50
Total
–/1
 
Show the mechanism for the third step only of the SN1 mechanism proposed to convert an alcohol to an alkyl halide. (Use electron-flow arrows to indicate the movement of electrons in the template to the left of the reaction arrow, then modify the template to the right of the reaction arrow to show the resulting product(s). Assign lone pairs, radical electrons, and atomic charges where appropriate. Do not add atoms to or remove atoms from the template.)
(No Response)
Viewing Saved Work Revert to Last Response
Home My Assignments