WHAT SHOULD YOU BE DOING

1
WHAT SHOULD YOU BE DOING?

• QUESTION OF THE DAY
• HOMEWORK OUT

2
TODAY YOU WILL LEARN

• WHAT A HYDROCARBON IS
• HOW TO DRAW A STRUCTURAL FORMULA
• ABOUT STRAIGHT CHAIN HYDROCARBONS

3
SECTION OC-2HYDROCARBONS

• COMPOUNDS MADE ONLY OF CARBON AND HYDROGEN
• THE BASIC PARTS OF LIVING THINGS

4
METHANE

• CH4
• SIMPLEST HYDROCARBON

5
STRUCTURAL FORMULA

• CHEMICAL FORMULA USING DASHES TO REPRESENT
  COVALENT BONDS

MOLECULAR FORMULA
CH4
H
C
H
H
ELECTRON DOT DIAGRAM
H
H
C
H
H
STRUCTURAL FORMULA
H
6
STRAIGHT CHAIN HYDROCARBON

• COMPOUNDS IN WHICH CARBON ATOMS ARE BONDED IN A
  SINGLE CHAIN

7
ETHANEC2H6
H
H
EACH C MUST HAVE 4 BOND SITES
C
C
H
H
H
H
ALL BOND SITES MUST BE USED
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9
PROPANEC3H8
H
H
H
H
C
H
C
C
H
H
H
10
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OCTANEC8H18
H
H
H
H
H
H
H
H
C
C
C
C
C
C
C
H
C
H
H
H
H
H
H
H
H
H
MAKE SURE EACH C HAS 4 BONDS YOU HAVE 18 Hs
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DID YOU LEARN

• WHAT A HYDROCARBON IS?
• HOW TO DRAW A STUCTURAL FORMULA?
• ABOUT STRAIGHT CHAIN HYDROCARBONS?

13
TODAY YOU WILL LEARN

• ABOUT ISOMERS
• HOW TO DRAW AN ISOMER

14
SECTION OC-2BISOMER

• TWO COMPOUNDS WITH THE SAME MOLECULAR FORMULA
• BUT DIFFERENT STRUCTURAL FORMULAS

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BUTANE C4H10
H
H
H
H
H
C
C
C
H
C
H
H
H
H
ISOBUTANE C4H10
H
H
H
H
H
1
H
2
1
C
C
C
H
C
H
C
H
H
H
H
H
H
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TODAY YOU WILL LEARN

• ABOUT DOUBLE AND TRIPLE BONDS
• HOW TO DRAW A DOUBLE AND TRIPLE BONDS

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SECTION OC-2CDOUBLE AND TRIPLE BONDS
18
ETHYLENEC2H4
MAKE IT A DOUBLE BOND
H
H
C
H
C
H
CROSS THEM OUT
THESE 2 MUST CONNECT
OH OH, ONLY 4 Hs AND 6 PLACES TO PUT THEM
19
ACETYLENEC2H2
I HAVE TO GET RID OF
C
C
4 BOND SITES
H
H
TRIPLE BOND
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ISOMERS OF DOUBLE AND TRIPLE BONDS
2
1
1
2
3
C
C
C
C
C
MOVE THE TRIPLE BOND
2
1
2
3
C
1
C
C
C
C
21
C
C
C
C
C
ONE TRIPLE BOND 2 DOUBLE BONDS
C
C
C
C
C
C
C
C
C
C
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DID YOU LEARN

• HOW TO DRAW A DOUBLE BOND HYDROCARBON?
• A TRIPLE BOND HYDROCARBON?

23
TODAY YOU WILL LEARN ABOUT

• ABOUT LONG AND SHORT CHAIN HYDROCARBONS?
• WHAT FRACTIONAL DISTILLATION IS?
• WHAT CRUDE OIL IS USED FOR?

24
SECTION OC-2DSHORT CHAIN HYDROCARBONS

• LIGHT IN MASS
• LOW BOILING POINT (BOIL EASILY)
• USED AS FUEL (GAS

25
LONG CHAIN HYDROCARBONS

• HEAVY
• SOLID AT ROOM TEMPERATURE
• LUBRICANTS
• WAXES
• OILS

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CRUDE OIL

• WHAT COMES OUT OF THE GROUND
• INCLUDES
• GASOLINE
• DIESEL FUEL
• OIL
• KEROSINE
• PETROLEUM JELLY
• ASPHALT
• WAX
• ALCOHOLS

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FRACTIONAL DISTILLATION

• DISTILLATION WHEN THE SUBSTANCE IS SEPARATED INTO
  MANY PARTS
• OIL REFINERY

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DID YOU LEARN

• LONG CHAIN HYDROCARBONS?
• ABOUT SHORT CHAIN HYDROCARBONS?
• WHAT FRACTIONAL DISTILLATION IS?
• WHAT CRUDE OIL IS USED FOR?