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Organic Chem Quiz 3: Compound ID, Dipole Moments, Acidic H. - Prof. Brian Lawrence, Quizzes of Organic Chemistry

An in-class quiz for chemistry 231: elementary organic chemistry, focusing on compound identification, ranking dipole moments, and identifying acidic hydrogens. Students are required to provide the correct compound name or formula for given molecular formulae and named compounds, rank compounds based on their dipole moments, and circle the most acidic hydrogen in given molecular structures.

Typology: Quizzes

Pre 2010

Uploaded on 08/04/2009

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NAME: October 3, 2008
OVER
Chemistry 231 – Elementary Organic Chemistry
In-Class Quiz -- #3
1. (5 pts total, 1 pt each) For each of the following molecular formulae and/or named
compounds, provide the correct compound name or formula, respectively. The first
example has been provided for you.
CH
4
Ethane
Methane
C
8
H
18
Hexane
C
4
H
10
Undecane
2. (6 pts total, 2 pts each) Rank the following compounds in order of increasing dipole
(1 = strongest dipole moment and 3 = weakest dipole moment)
CH
3
Br CH
3
F CH
3
Cl
__________ __________ __________
CH
2
O CH
4
CH
3
OH
__________ __________ __________
pf2

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NAME: October 3, 2008

OVER 

Chemistry 231 – Elementary Organic Chemistry

In-Class Quiz --

  1. (5 pts total, 1 pt each) For each of the following molecular formulae and/or named compounds, provide the correct compound name or formula, respectively. The first example has been provided for you.

CH 4 Ethane

Methane

C 8 H 18 Hexane

C 4 H 10 Undecane

  1. (6 pts total, 2 pts each) Rank the following compounds in order of increasing dipole (1 = strongest dipole moment and 3 = weakest dipole moment)

CH 3 Br CH 3 F CH 3 Cl

__________ __________ __________

CH 2 O CH 4 CH 3 OH

__________ __________ __________

  1. (8 pts total, 2 pts each) For each of the following molecular structures, circle the MOST acidic hydrogen. Note that lone pairs have been omitted for clarity.

a.

C

O

C N

H

C H

N

H

H

H H

H H

b.

C

C N

H

C H

N

H

H H

H H H

H

H

c.

C

O

C C

C

O

H

H H

H H H

O

H

H

d.

C

C S

C H

O

H

H H

H H

H H

  1. (6 pts) Using a Newman projection, draw the lowest energy conformation of 2-methylbutane along the C 2 -C 3 bond axis. Place your answer in the space provided.

Lowest energy conformation of 2-methylbutane