Structure 3.2 - Functional groups_ Classification of organic compounds.pptx.pdf

chem

1. Structure 3.2
Functional groups: Classification of
organic compounds
Guiding question:
How does the classification of organic
molecules help us to predict their
properties?
Time:
SL and HL -
AHL -
1

2. Prior knowledge: why do you think carbon can form so many different types of
molecules, and how might this ability be important in everyday life?
2

3. SL and HL content
3

4. Part A
Formulas of organics
compounds
4

5. Both these types of formula offer you little or no information about the possible
structures of larger, more complex molecules.
5
● Empirical Formula CH
2
O
Molecular Formula C
6
H
12
O
6

6. Structure formula?
6

7. Quick check: Determine the type of formula of these compound!
7
Compound Ethane 3-bromo-3-methylpentane
Empirical Formula CH3 C6H13Br
Molecular Formula C2H6
Full structural formula
Condense formula

8. Practice question
8
Draw the full structural formula and skeletal formula for each of the following
organics compounds.
a.Hexane (CH3CH2CH2CH2CH2CH3)
b.Chloroethane (H2C=CHCl)

9. Stereochemical formula (AHL)
9

10. Part B
Functional group
10

11. What do you think causes this difference?

12. Functional group
12

13. Functional group
13

14. Determine the functional group of these compounds!
14

15. Quick check: functional group
15
A
B
C
D

16. Saturated and Unsaturated Hydrocarbons

17. Part C
Homologous Series
17

18. Name these hydrocarbons!
18

19. What is homologous series?
19

20. Example of homologous series
20
C
2
H
4

C
3
H
6


C
4
H
8

C
5
H
10


C
6
H
12


CH
3
OH

C
2
H
5
OH


C
3
H
7
OH

C
4
H
9
OH

C
5
H
11
OH

21. Boiling point of Homologous series
21

22. Part D
Nomenclature
22

23. 1.What are the temperature scales being used on each thermometer?
2.How do we convert from
o
C to K?
3.What is the change in T between the freezing and boiling point of water in:
a.
o
C
b.K
23

24. How do we name the straight chain hydrocarbon?
24

25. How do we name the branched-chain hydrocarbon?
25

26. Quick check: Give the name!
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