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Bruice - Organic Chemistry 6/e (Homework)

Chris Read

Prentice Hall, section 1, Fall 2011

Instructor: Mr. Prentice Hall

Current Score : 0 / 15

Due : Saturday, August 27, 2011 07:30 AM EDT

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  • Description

    Here are some textbook questions from Organic Chemistry 6/e by Paula Bruice published by Prentice-Hall. Click here for a list of all of the questions coded in WebAssign.

  • Instructions

    This demo assignment allows many submissions and allows you to try another version of the same question for practice.

Assignment Submission

For this assignment, the number of submissions for each answer box is counted independently. The number of submissions remaining changes only if you submit a new or changed answer.

1. –/7 points Notes Question: BruiceOrg6 1.P.004.
Question part
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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?
Enter an exact number.

(b) What is the total number of lone pairs in the caffeine molecule?
Enter an exact number.

(c) What is the molecular formula for caffeine?

chemPad

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(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
Enter an exact number.
sigma bonds
Enter an exact number.

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2. –/2 points Notes Question: BruiceOrg6 2.P.025.
Question part
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Open the editor and manipulate the structure in 3D (press "F7" once the editor opens), then answer the following questions. One of the substituents is a methyl group and the other is an iodine.

MarvinSketch

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Open MarvinSketch
(a) Write the name using the IUPAC substitutive nomenclature convention.
Answer is case sensitive.

(b) Is this the most stable conformation?
    

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3. –/1 points Notes Question: BruiceOrg6 5.P.001.
Question part
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Draw the skeletal structure for cis-1-ethyl-4-iodocyclohexane. (Hint: Make sure the tapered end, i.e. the thin end, of the wedge bond is attached to the parent.)

MarvinSketch

Help

  1. Click Open MarvinSketch.
  2. Use MarvinSketch to draw the
    chemical structure.
  3. Click Finished when you are done.
Open MarvinSketch

Your work in question(s) will also be submitted or saved.
4. –/2 points Notes Question: BruiceOrg6 1.P.003.
Question part
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0/1 0/1
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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)2CHCHCHC(CH3)3

MarvinSketch

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  1. Click Open MarvinSketch.
  2. Use MarvinSketch to draw the
    chemical structure.
  3. Click Finished when you are done.
Open MarvinSketch


(b) (CH3)3CC(CH3)2CHCHCH3

MarvinSketch

Help

  1. Click Open MarvinSketch.
  2. Use MarvinSketch to draw the
    chemical structure.
  3. Click Finished when you are done.
Open MarvinSketch

Your work in question(s) will also be submitted or saved.
5. –/2 points Notes Question: BruiceOrg6 2.P.003.
Question part
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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

MarvinSketch

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  1. Click Open MarvinSketch.
  2. Use MarvinSketch to draw the
    chemical structure.
  3. Click Finished when you are done.
Open MarvinSketch

name
Answer is case sensitive.
Your work in question(s) will also be submitted or saved.
6. –/1 points Notes Question: BruiceOrg6 8.P.004.
Question part
Points
Submissions
1
0/1
0/50
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0/1
 
Show the mechanism for the third step only of the SN1 mechanism proposed to convert an alcohol to an alkyl halide. (Draw electron flow arrows and complete the Lewis structures given in the template. Assign lone pairs, radical electrons, and atomic charges where appropriate. Change the bond order on the product side where needed.)

MarvinSketch

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Open MarvinSketch

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