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Organic Chem I > Chapter 3-Alkanes > Flashcards

Chapter 3-Alkanes Flashcards

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1
Q

Alkenes

A

Double bond

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2
Q

Alkynes

A

Triple bonds

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3
Q

Arenes

A

Have alternating double and single bonds

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4
Q

Methane

A

CH4
One carbon

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5
Q

Ethane

A

Two carbons

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6
Q

Isomers

A

Molecules with same formula but different structures

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7
Q

Propane

A

3 carbons

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8
Q

Butane

A

4 carbons

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9
Q

Pentane

A

5 carbons

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10
Q

Hexane

A

6 carbons

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11
Q

Heptane

A

7 carbon

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12
Q

Octane

A

8 carbons

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13
Q

Nonane

A

9 carbons

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14
Q

Decane

A

10 carbons

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15
Q

Undecane

A

11 Carbon

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16
Q

Dodecane

A

12 carbon

17
Q

Tridecane

A

13 carbons

18
Q

Icocane

A

20 carbons

19
Q

Triacontane

A

30 carbons

20
Q

Steps to name straight

A
  1. Identify parent hydrocarbon (longest chain)
  2. Number the atoms in chain (start at the end closest to a branch)
  3. Identify the substituents (ei. 1-ethyl, 4-methyl)
  4. Write word (3-ethyl-4,7-dimethylnonane)
21
Q

Alkane increased molecular weight

A

Increased boiling and melting points

22
Q

Newman projection

A

The Mercedes sign looking thing

23
Q

Energy minima

A

Staggered conformations

24
Q

Energy maxima

A

Eclipsed conformations

25
Q

Anti conformation

A

Lowest energy- the two big groups are as far away from each other as possible

26
Q

Gauche conformation

A

Two big groups are 60 degrees apart
Steric strain

27
Q

H-H eclipse

A

Torsional strain

28
Q

H-CH3 eclipsed

A

Mostly torsional strain

29
Q

CH3-CH3 eclipsed

A

Torsional and steric strain

30
Q

Strain energy most to least

A

CH3-CH3 eclipse
CH3-H eclipse
H-H eclipse
CH3-CH3 gauche
Anti

31
Q

Alkanes reactivity

A

Relatively unreactive and rarely involved in chemical reactions

32
Q

Functional group

A

Group of atoms within a larger molecule that has a characteristic chemical reactivity

33
Q

Saturated hydrocarbons

A

Alkanes

34
Q

Alkane general formula

A

C(n) H(2n+2)

Organic Chem I (8 decks)

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