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Section 2: Functional Groups (chapter 23)

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1 Section 2: Functional Groups (chapter 23)

2 Functional Groups: A group of atoms attached to a hydrocarbon chain that gives it specific properties. Example: Alcohol Functional Group Propane: Properties: Propanol: New Properties:

3 Halocarbons: Compound Structure:
Solubility: More soluble with more halogens attached to hydrocarbon Boiling Point: Increase with increasing number of halogen 2 Cool Facts: Used for anesthetics, refrigerants, and industrial cleaning supplies

4 Alcohol: Structure: R- OH
Solubility: Soluble with hydrocarbons fewer than 4 carbons Boiling Point: High boiling points 2 Cool Facts: Use as fuel, antifreeze, fats, and oils

5 Ether: Structure: Solubility: Yes
Boiling Point: Slightly lower BP than alcohol but higher than other hydrocarbons 2 Cool Facts: Used as anesthetics

6 Aldehyde: Structure: Solubility: In all proportions for hydrocarbons less than 4 carbons long. Boiling Point: Slightly Lower boiling points than alcohols and are liquid or solid at room temperature. 2 Cool Facts: Fragrant smells and penetrating odors.

7 Ketone: Structure: Solubility: For less than 4 carbons long
Boiling Point: Lower than alcohols. Solids and liquids at room temperatures 2 Cool Facts: Fragrant odors

8 Carboxylic Acid: Structure: Solubility: Yes, for small compounds
Boiling Point: Higher boiling points than other functional groups. 2 Cool Facts: Lower members are colorless and have unpleasant odors and larger molecules are waxy and oily.

9 Ester: Structure: Solubility: Slightly soluble for molecules less than 4 to 5 carbons long. Boiling Point: Lower boiling points 2 Cool Facts: Have fruity smells

10 Esterification: Production of an ester by mixing carboxylic acid with an alcohol in the presence of a catalyst.

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12 Draw the ester from the two compounds:

13 Saponification: Process of making soap by using fat and a strong base.

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15 Video for soap making: ideoId=AbsY68lrCWo

16 Making Biodesiel:

17 Warm up: Describe what a functional group is and how it affects a hydrocarbon.

18 Soap Making Lab Objective: Students will make soap using oil and sodium hydroxide. Materials: List all materials used. Procedure: Measure out 100g of oil Calculate the amount of NaOH needed. (show calc) Prepare NaOH mixture Heat both materials to 50 C and then add. Analysis: Explain how soap is made using both drawings of the reaction and an explination.


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