Carboxylic Acids and Esters

Question 1

Carboxylic Acids Characteristics

Answer 1

• Forms weak acids
• Ex: aspirin, citric acid. vitamin C

Question 2

Esters Characteristics

Answer 2

• Responsible for many of the artificial tastes and smells in products
• Ex: cherry coke, nail polish remover, apple flavour, lemon flavour

Question 3

What do carboxylic acids and esters both contain?

Answer 3

• A carboxyl group
• COOH

Question 4

Where is the carboxyl group located in carboxylic acids?

Answer 4

At the end of the parent chain

Question 5

How are carboxylic acids named?

Answer 5

• Replace the final -e in the parent hydrocarbon with -oic acid
• Position numbers are not used because it is always at carbon 1

Question 6

Formic Acid

Answer 6

CHCOOH

Question 7

Acetic Acid

Answer 7

CH3COOH

Question 8

Benzoic Acid

Answer 8

A benzene with a carboxyl group attached

Question 9

In esters where is the carboxyl located?

Answer 9

In the middle of the hydrocarbon chain

Question 10

How to name esters

Answer 10

• First the part with the O atom is named with the suffix -yl
• then the part with the carboxyl group is named with the suffix -oate