ACTIVITY 8

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1. By definition, an ________is a substance that produces ________ ions (H+) when it dissolves in _______.

2. Carboxylic acids are organic compounds that have a terminal ________ group

3. The carboxyl functional group has the following structure:

4. The general formula for carboxylic acids is:

5. There are other ways to represent carboxylic acids, all of them being equal. They can be used indistinctly throughout the explanations/aids/exercises:

6. Carboxylic acids are ________ molecules.

7. Carboxylic acids with less than five carbons are soluble in ________. The carboxylic acid with five carbons is only __________ soluble in water. Carboxylic acids with a higher molecular weight are no longer _________ in water because the majority of the molecule is non-polar.

8. _________ ___ is the simplest carboxylic acid. It is also known as ___________. Its formula is __________. This carboxylic acid is the poison that __________ and ___________ use in their bites.

9. Some of the main uses are as a ___________ and an ____________ in foods for cattle. For example, when it is rubbed over fresh straw, it stops certain ____________________ processes that maintain the nutritional value of the foods longer.

10. ____________ has the formula CH₃ – COOH. It is the compound that gives the strong smell and taste to _________. Its common name is ___________

11. ___________is corrosive, even though it is considered a weak acid. Inhaling its vapors causes ___________, ______________, eye and __________ irritation.

12. It is used in industry for making _________, a polymer used for water and soda bottles. Other functions are making _______________ and ___________film. At home, it works as a ________________ agent. The food industry uses it as an acid ___________.

13. Butanoic acid has the following formula:

14. It is also known as _____________.

15. Butyric acid has a foul smelling odor and is found in rancid _______, _________ cheese, and __________.

16. ____________is a fatty acid. It is used to prepare certain ________, since these have a pleasant __________ and _________. They are also used in foods and ____________.