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Midterm

CHM 1321 Study Guide - Midterm Guide: Dipole, Chemical Formula, Cyclohexane Conformation


Department
Chemistry
Course Code
CHM 1321
Professor
Sandro Gambarotta
Study Guide
Midterm

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11) How many carbon-carbon σ bonds are present in the molecule shown?
A) 1
B) 2
C) 3
D) 4
E) 5
Answer: D
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25) Based on the structure below, what is the value for the H-N-CH3 bond angle?
A) 60 degrees
B) 90 degrees
C) 109 degrees
D) 120 degrees
Answer: C or D (accounting for resonance structures)
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How many sp3 hybridized carbon atoms are present in the molecule shown?
A) 1
B) 2
C) 3
D) 4
E) 5
Answer: E
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Are the two compounds shown below best described as cis-trans isomers, constitutional
isomers, or not isomeric?

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Answer: not isomeric
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Provide the skeletal structures of the five constitutional isomers with molecular formula
C6H14.
Answer:
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Provide the condensed formulas of three structural isomers with molecular formula
C5H12 and arrange them in order of increasing boiling point.
Answer: C(CH3)4 < (CH3)2CHCH2CH3 < CH3(CH2)3CH3
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Does 1,1-dichloroethene (Cl2CCH2) have a net molecular dipole moment? If it does,
draw the molecule and indicate the direction of this molecular dipole moment.
Answer: Net molecular dipole moment present.
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Provide the name of the compound below.
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