Download - Mary Eats Peanut Butter
Learning Objectives•To be able to name hydrocarbons by looking at its structural formula
•To be able to identify the structural formula for hydrocarbons
Yes No Maybe
I know the definition of a hydrocarbon
I can name of the first 8 alkanes and alkenes
I can use the rules to identify the names of hydrocarbons
I can draw unbranched and branched hydrocarbons when given their names
I can solve the puzzle: Mary Eats Peanut Butter
Number of carbons
NameNumber of carbons
stem
1 methane 5
2 6 hexane
3 7
4 butane 8 octane
EXTENSIONDraw the structural formula for the above alkanes
Number of carbons
NameNumber of carbons
stem
1 methane 5 pentane
2 ethane 6 hexane
3 propane 7 heptane
4 butane 8 octane
Firstly, we have names for simple unbranched chains.
Secondly, we have names for simple alkyl groups that may be attached to the
chains.
Group CH3– C2H5– CH3CH2CH2– CH3CH2CH2C
H2–
Name Methyl Ethyl Propyl Butyl
1. Find and name the longest continuous carbon chain.
2. Identify and name groups attached to this chain.
3. Number the chain consecutively, starting at the end nearest a substituent group.
4. Designate the location of each substituent group by an appropriate number and name.
5. Assemble the name, listing groups in alphabetical order. The prefixes di, tri, tetra etc., used to designate several groups of the same kind, are not considered when alphabetizing
Which can be drawn as:
a)
FIND AND NAME THE LONGEST CONTINUOUS CARBON CHAIN.
This is an ethyl group
C2H5–
Ethyl
12
34
6
5
7
8
87
65
3
4
2
1
NUMBER THE CHAIN CONSECUTIVELY, STARTING AT THE END NEAREST A SUBSTITUENT GROUP.
Thus, the proper nomenclature of this alkane is:
4-ethyloctane
87
65
3
4
2
1
What is this?
And the structural formula is?
Group 1 – Card sort
Group 2 – Multiple choice questions
Extensionhttp://bestchoice.net.nz/#(I will log you in)
Yes No Maybe
I know the definition of a hydrocarbon
I can name of the first 8 alkanes and alkenes
I can use the rules to identify the names of hydrocarbons
I can draw unbranched and branched hydrocarbons when given their names
I can solve the puzzle: Mary Eats Peanut Butter