Mary Eats Peanut Butter

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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 hydrocarbonsI can draw unbranched and branched hydrocarbons when given their names I can solve the puzzle: Mary Eats Peanut Butter

Number of carbons 1

Name methane

Number of carbons 5

stem

2 34 butane

6 78

hexane

octane

EXTENSION Draw the structural formula for the above alkanes

Number of carbons 1

Name methane

Number of carbons 5

stem pentane

2 34

ethane propanebutane

6 78

hexane heptaneoctane

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 H2Butyl

Name

Methyl

Ethyl

Propyl

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

a)

Which can be drawn as:

FIND AND NAME THE LONGEST CONTINUOUS CARBON CHAIN.

This is an ethyl group

C2H5

Ethyl

NUMBER THE CHAIN CONSECUTIVELY, STARTING AT THE END NEAREST A SUBSTITUENT GROUP. 8

76

21 3

4

5

1

37 5

2

8

6

4

Thus, the proper nomenclature of this alkane is:4-ethyloctane

1

37 5

2

8

6

4

What is this?

And the structural formula is?

Group 1 Card sortGroup 2 Multiple choice questions

Extension http://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 hydrocarbonsI can draw unbranched and branched hydrocarbons when given their names I can solve the puzzle: Mary Eats