Straight Chain Alkanes

Methane

CH4
-One Carbon

Ethane

C2H6:CH3CH3
-2 carbons

Propane

C3H8:CH3CH2CH3
3 carbons

Butane

C4H10:CH3CH2CH2CH3
-4 carbons

Pentane

C5H12:CH3(CH2)3CH3
-5 carbons

Hexane

C6H14:CH3(CH2)4CH3
-6 carbons

Heptane

C7H16:CH3(CH2)5CH3

Octane

C8H18

Nonane

C9H20:CH3(CH2)7CH3

Decane

C10H22;CH3(CH2)8CH3

unbranched alkanes

have greater van der Waals forces of attraction because of their greater surface areas.
-have all their carbon atoms in a straight chain formation.

Parent chain

the longest continuous chain of carbon atoms in a branched-chain alkane, alkene, or alkyne
-serves as the main part of the name of a branched alkane

One carbon branch

methyl
-CH3

A two carbon branch is called

ethyl
-CH2Ch3

three carbon branch

propyl (Ch2Ch2Ch3)
-isopropyl (CH3)2(CH)

Four carbon branch

Butyl: CH2CH2CH2CH3
Isobutyl: (CH3)2CHCH2-
Sec-butyl: CH3CH-CH2CH3
tert-butyl: (CH3)3C-

Five carbon branch

Pentyl : CH2CH2CH2CH2CH3,