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Explain why the compound shown below has a lower boiling point than CH3CH2CH2CH3Explain why the compound shown below has a lower boiling point than CH<sub>3</sub>CH<sub>2</sub>CH<sub>2</sub>CH<sub>3</sub>

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CH3CH2CH2CH3 has greater van der W...

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Draw the structure for isopentyl alcohol.

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Draw a Newman projection for a gauche conformer of butane viewed along the C2-C3 bond.

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Which of the following compounds cannot form hydrogen bonds between its molecules?


A) CH3CH2CH2NHCH3\mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { NHCH } _ { 3 }
B) CH3CH2CH2CH2Cl\mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { Cl }
C) CH3CH2CH2CH2NH2\mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { NH } _ { 2 }
D) CH3CH2CH2CH2OH\mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { OH }
E) CH3CH2CH2OCH3\mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { OCH } _ { 3 }

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Explain why primary and secondary amines form hydrogen bonds but tertiary amines do not.

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The nitrogen in a tertiary ami...

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If an acyclic alkane contains n carbons, how many hydrogens does it contain?


A) n
B) n+2
C) n-2
D) 2n
E) 2n + 2

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Draw the Newman projection for the most stable conformer of 2-methylpropane.

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Draw the most stable conformer of trans-1-ethyl-2-methylcyclohexane.

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What is the molecular formula of the following compound? What is the molecular formula of the following compound? A) \mathrm { C } _ { 8 } \mathrm { H } _ { 8 } B) \mathrm { C } _ { 8 } \mathrm { H } _ { 10 } C) \mathrm { C } _ { 8 } \mathrm { H } _ { 12 } D) \mathrm { C } _ { 8 } \mathrm { H } _ { 14 } E) \mathrm { C } _ { 8 } \mathrm { H } _ { 16 }


A) C8H8\mathrm { C } _ { 8 } \mathrm { H } _ { 8 }
B) C8H10\mathrm { C } _ { 8 } \mathrm { H } _ { 10 }
C) C8H12\mathrm { C } _ { 8 } \mathrm { H } _ { 12 }
D) C8H14\mathrm { C } _ { 8 } \mathrm { H } _ { 14 }
E) C8H16\mathrm { C } _ { 8 } \mathrm { H } _ { 16 }

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Which conformers of butane, viewed along the Cl-C2 bond, has the lowest energy?


A) the gauche conformer
B) the eclipsed and gauche conformers
C) the anti conformer
D) the eclipsed conformer
E) the anti and gauche conformers

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C

Which of the following compounds has the lowest boiling point?


A) CH3CH2CH2CH2CH2CH3\mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 3 }
B) Which of the following compounds has the lowest boiling point? A) \mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 3 } B) C) D) E) CH<sub>3</sub>CH<sub>2</sub>CH<sub>2</sub>CH<sub>2</sub>CH<sub>2</sub>CH<sub>2</sub>CH<sub>3</sub>
C) Which of the following compounds has the lowest boiling point? A) \mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 3 } B) C) D) E) CH<sub>3</sub>CH<sub>2</sub>CH<sub>2</sub>CH<sub>2</sub>CH<sub>2</sub>CH<sub>2</sub>CH<sub>3</sub>
D) Which of the following compounds has the lowest boiling point? A) \mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 3 } B) C) D) E) CH<sub>3</sub>CH<sub>2</sub>CH<sub>2</sub>CH<sub>2</sub>CH<sub>2</sub>CH<sub>2</sub>CH<sub>3</sub>
E) CH3CH2CH2CH2CH2CH2CH3

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Which of the following describes the most stable conformer of  trans-1-tert-butyl-3- \text { trans-1-tert-butyl-3- } methylcyclohexane?


A) Both groups are equatorial.
B) Both groups are axial.
C) The tert-butyl group is equatorial and the methyl group is axial.
D) The tert-butyl group is axial and the methyl group is equatorial.
E) none of the above

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Which of the following compounds has the highest boiling point?


A) CH3CH2OCH2CH3\mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { OCH } _ { 2 } \mathrm { CH } _ { 3 }
B) CH3CH2CH2CH2OH\mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { OH }
C) CH3CH2CH2CH2NH2\mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { NH } _ { 2 }
D) CH3CH2CH2CH2Cl\mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { Cl }
E) CH3CH2CH2CH2Br\mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { Br }

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Which of the following is sec-butyl alcohol?


A) CH3CH2CH2CH2OH\mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { OH }
B) CH3CH(OH) CH2CH3\mathrm { CH } _ { 3 } \mathrm { CH } ( \mathrm { OH } ) \mathrm { CH } _ { 2 } \mathrm { CH } _ { 3 }
C) (CH3) 2CHCH2OH\left( \mathrm { CH } _ { 3 } \right) _ { 2 } \mathrm { CHCH } _ { 2 } \mathrm { OH }
D) (CH3) 2CHOH\left( \mathrm { CH } _ { 3 } \right) _ { 2 } \mathrm { CHOH }
E) (CH3) 2CHOCH3\left( \mathrm { CH } _ { 3 } \right) _ { 2 } \mathrm { CHOCH } _ { 3 }

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Draw the most stable conformer of cis-1-tert-butyl-4-methylcyclohexane.

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11eb4044_1de5_b848_ad6e_15b83e0e7780_TB1829_00

Which conformer has the greatest energy in the potential energy diagram for chair-chair interconversion of cyclohexane?


A) twist-boat
B) planar
C) boat
D) half-chair
E) chair

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D

Would you expect sodium chloride (NaCl) to be soluble in hexane? Explain your answer.

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One would not expect NaCl to b...

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Name the cycloalkane shown below. Name the cycloalkane shown below.

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4-butyl-1,...

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Which compound is more soluble in water? Explain your choice. CH3OCH3 or CH3CH2OH

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CH3CH2OH is more soluble in wate...

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How many tertiary carbons are in the following compound? How many tertiary carbons are in the following compound? A) 2 B) 3 C) 4 D) 5 E) 6


A) 2
B) 3
C) 4
D) 5
E) 6

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