LAB MOD 8

Question 1

properties of carboxylic acids

Answer 1

exhibit intermolecular hydrogen bonding
- high BP and MP
colorless with disagreeable odor
HIGH MW: wax like solids
readily hydrogen bond with water

Question 2

esters give what in flowers and fruits?

Answer 2

Pleasant fragrances and flavors

Question 3

Physical properties of esters

Answer 3

pleasant odors
no hydrogen bonddds
 Boiling point: much lower than alcohols and COOH, same as ketones
.low melecular masss: water soluble
3-5 carbons for solubility

Question 4

ssolubility of benzoic acid in water and alcohol

Answer 4

water- insoluble

alcohol-soluble

Question 5

solubility of ethyl acetate in water and alcohol

Answer 5

water- immiscible

alcohol- miscible

Question 6

ssolubility of caarboxylic acids

Answer 6

1-5 C are soluble in water

higher carboxylic acids are less soluble

longer chain acids are soluble in less polar (ethers and alcohol)

Question 7

solubility of esters

Answer 7

Low MW soluble in water
Solubility decrease when C chain increase
Borderline solubility (3-5 C atoms)

Question 8

Ionization of 6M HCl

Answer 8

Bright light

Question 9

Ionization of 6M Acetic Acid

Answer 9

Dim light

Question 10

carboxylic acids are weak acids that ionize completely or slightly in water?

Answer 10

Slightly

Question 11

all carboxylic acids react with what compound to form carboxylate salts?

Answer 11

Strong bases

Question 12

reaction of carboxylic acid and alcohol

Answer 12

Esterification

Question 13

reverse esterification; ester and water reaction through a strong catalyst

Answer 13

Ester hydrolysis

Question 14

is the hydrolysis of an organic comound under basic conditions in which a carboxylate salts is one of the product

Answer 14

Saponification

Question 15

is commonly used to refer to the reaction of a base with a fat or oil to form soap

Answer 15

Saponification

Question 16

what is the process the allows the soap to clean clothes?

Answer 16

Dualism

Question 17

is produced when a carboxylic acid loses one or more acidic H atoms

Answer 17

carboxylate ion

Question 18

is a type of ketone, and it is the same fruity-smelling substance used in nail polish remover. If the breath of a person with diabetes smells of acetone, this suggests that there are high levels of ketones in their blood. As the ketones build up, they increase the acidity of the blood. This can be toxic.

Answer 18

Acetone