Carboxylic Acids & Esters
Learning Goals
I can use proper IUPAC conventions to name, write formulas and draw structures of carboxylic acids and esters
I can explain how carboxylic acids undergo esterification reactions to produce esters.
I can differentiate carboxylic acids and ester compounds from other functional groups by their names and structural formulas
I can describe some physical properties of carboxylic acids and ester compounds
I can explain the types of chemical reactions that carboxylic acids and ester compounds undergo and what products are formed as a result.
I can explain how carboxylic acids undergo esterification reactions to produce esters.
I can differentiate carboxylic acids and ester compounds from other functional groups by their names and structural formulas
I can describe some physical properties of carboxylic acids and ester compounds
I can explain the types of chemical reactions that carboxylic acids and ester compounds undergo and what products are formed as a result.
LESSON OVERVIEW (SPECIFIC EXPECTATIONS: B2.2, B2.4, B3.1, B3.2, B3.3)
Hook:
Bring in empty containers of vinegar, vitamin C, and aspirin. Have students investigate the ingredients listed on the bottle/box to find the name of the main ingredient in each that has the same ‘ –ic acid’ ending as the others.
Answers: acetic acid, ascorbic acid, and acetylsalicylic acid.
Same activity can be done for esters: bring in a bag of chips, wintergreen, Lifesavers and have students read through the ingredients to find an ingredient with the ‘-oate’ ending. Talk about how esters have different odours and are commonly used as flavouring agents.
Bring in empty containers of vinegar, vitamin C, and aspirin. Have students investigate the ingredients listed on the bottle/box to find the name of the main ingredient in each that has the same ‘ –ic acid’ ending as the others.
Answers: acetic acid, ascorbic acid, and acetylsalicylic acid.
Same activity can be done for esters: bring in a bag of chips, wintergreen, Lifesavers and have students read through the ingredients to find an ingredient with the ‘-oate’ ending. Talk about how esters have different odours and are commonly used as flavouring agents.
Teaching Strategy:
Use the following PowerPoint presentation on carboxylic acids and esters. This comprehensive lesson covers naming rules, properties and reactions of carboxylic acids and esters. It is a very visual presentation that will be sure to attract the visual learners in the classroom. |
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Consolidation:
Have students practice naming carboxylic acids and esters on this online interactive multiple choice quiz, courtesy of Doc Brown's Chemistry.
Have students practice naming carboxylic acids and esters on this online interactive multiple choice quiz, courtesy of Doc Brown's Chemistry.