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Chem 2310 > Chapter 5 Alkenes > Flashcards

Chapter 5 Alkenes Flashcards

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1
Q

Equation for degree of unsaturation

A

(2c + 2+ N - X - H)/2

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2
Q

What does “c”, “N”, “X” and “H” stand for in degree of unsaturation equation

A 
C = Carbon 
N = Nitrogen
X = Halogen
H = Hydrogen
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3
Q

Degree of unsaturation for: Double bond

A

1 degree

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4
Q

Degree of unsaturation for: Single bond

A

0 degrees

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5
Q

Degree of unsaturation for: triple bond

A

2 degrees

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6
Q

Degree of unsaturation for:

Cyclo- groups

A

1 degree

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7
Q

Alkane

A

Only single bonds

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8
Q

Alkene

A

At least one double bond present.

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9
Q

Alkyne

A

At least 1 triple bond present

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10
Q

Rank priority of Alkane (single), Alkene (Double) and alkyne (triple)

A

Alkene (double), Alkyne (triple), Alkane (single)

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11
Q

Define: Vinylic carbon

A

a carbon that is attached to a double bond

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12
Q

Define: Allylic Carbon

A

A carbon that is 1 away from the double bond

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13
Q

Define: Methylene Carbon

A

A carbon that is attached to a fully saturated carbon chain.

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14
Q

What is the alkene nomenclature fore a Cis isomer.

A

Z

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15
Q

What is the alkene nomenclature for a Trans isomer

A

E

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16
Q

How are priority substituents arranged on a z isomer

A

cis or same side of the double bond

17
Q

How are priority substituents arranged on an e isomer

A

trans or opposite side of the double bond

18
Q

Classification of a fatty acid

A

Hydrocarbon chain with polar subsituents

Long carbon chains (12-40)

19
Q

Define: Triglyceride

A

A carbon chain with 3 alcohol groups.

20
Q

Define: Steric acid

A

An saturated acid

21
Q

Monounsaturated

A

only 1 doublebond

22
Q

How is melting point related to saturation

A

The higher the degree of unsaturation the lower the melting point.

23
Q

Why is melting point related to saturation

A

Molecules are not able to stack on each other when double or triple bonds are present.

Chem 2310 (3 decks)

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