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

WebAssign

Welcome, demo@demo

(sign out)

Saturday, March 29, 2025 15:10 EDT

Home My Assignments Grades Communication Calendar My eBooks

Smith - Organic Chemistry 4/e (Homework)

James Finch

Chemistry - College, section 1, Fall 2019

Instructor: Dr. Friendly

Current Score : 6 / 14

Due : Saturday, January 18, 2020 05:30 EST

Last Saved : n/a Saving...  ()

Question
Points
1 2 3 4 5
Total
6/14 (42.9%)
  • Instructions

    WebAssign supports Organic Chemistry 4/e by Janice G. Smith published by McGraw-Hill, with an extensively class-tested exclusive collection of questions developed by Dr. Kay Sandberg, an award winning organic chemistry instructor at North Carolina State University. These questions, covering the main topics in organic chemistry, have been correlated as closely as possible to the appropriate chapters in this textbook. This independent question collection provides a more secure solution to online homework for organic chemistry, since most organic chemistry textbook questions have detailed solutions published in the accompanying student solution guide.

    Question Collection Features:
    Questions requiring automatic assessment of student-drawn structures, including skeletal structures, Lewis structures, reaction mechanisms with electron-flow arrows ("pushing electrons"), isotopically-labeled reactions, and multi-step syntheses, use the popular MarvinSketch application. WebAssign grades these structures automatically, checking for stereo features, rings, chains, etc.

    Questions requiring automatic assessment of chemical formulas and reaction equations use WebAssign's chemPad, an intuitive answer-entry palette with over 150 lines of intelligent answer feedback.

    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 wherever the problem has randomized values.

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 SmithOrg4 1.P.004. My Notes
Question Part
Points
Submissions Used
1 2 3 4 5 6 7
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.
(a) What is the total number of hydrogens in the caffeine molecule?
(No Response) seenKey

10



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

2



(c) What is the molecular formula for nicotine?

chemPad

Help

 
C10H14N2

(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) seenKey

5

sigma bonds(No Response) seenKey

13

Viewing Saved Work Revert to Last Response
2. /2 points SmithOrg4 4.P.029. My Notes
Question Part
Points
Submissions Used
1 2
0/50 0/50
Total
/2
 
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 fluorine.
(a) Write the name using the IUPAC substitutive nomenclature convention.
(No Response) seenKey

cis-1-fluoro-4-methylcyclohexane


(b) Is this the most stable conformation?
    
Viewing Saved Work Revert to Last Response
3. /1 points SmithOrg4 4.P.024. My Notes
Question Part
Points
Submissions Used
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)
Marvin JS
Viewing Saved Work Revert to Last Response
4. /2 points SmithOrg4 1.P.003. My Notes
Question Part
Points
Submissions Used
1 2
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)3CC(CH3)2CHCHCH3
(No Response)
Marvin JS


(b) (CH3)3CCH2CHC(CH3)2
(No Response)
Marvin JS
Viewing Saved Work Revert to Last Response
5. /2 points SmithOrg4 4.P.003. My Notes
Question Part
Points
Submissions Used
1 2
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)
Marvin JS

name
(No Response) seenKey

2,4,4-trimethylhexane

Viewing Saved Work Revert to Last Response