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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...  ()

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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.

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1. –/7 points Hornback2 3.P.001. My Notes
Question Part
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–/1 –/1 –/1 –/1 –/1 –/1 –/1
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–/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)
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2. –/1 points Hornback2 6.P.018. My Notes
Question Part
Points
Submissions Used
1 2
–/0 –/1
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–/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?
    
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3. –/1 points Hornback2 6.P.013. My Notes
Question Part
Points
Submissions Used
1
–/1
0/50
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–/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)
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4. –/2 points Hornback2 2.P.003. My Notes
Question Part
Points
Submissions Used
1 2
–/1 –/1
0/50 0/50
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–/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)
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5. –/2 points Hornback2 5.P.003. My Notes
Question Part
Points
Submissions Used
1 2
–/1 –/1
0/50 0/50
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–/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)
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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)
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