LAB MOD 8 Flashcards
properties of carboxylic acids
exhibit intermolecular hydrogen bonding - high BP and MP colorless with disagreeable odor HIGH MW: wax like solids readily hydrogen bond with water
esters give what in flowers and fruits?
Pleasant fragrances and flavors
Physical properties of esters
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
ssolubility of benzoic acid in water and alcohol
water- insoluble
alcohol-soluble
solubility of ethyl acetate in water and alcohol
water- immiscible
alcohol- miscible
ssolubility of caarboxylic acids
1-5 C are soluble in water
higher carboxylic acids are less soluble
longer chain acids are soluble in less polar (ethers and alcohol)
solubility of esters
Low MW soluble in water
Solubility decrease when C chain increase
Borderline solubility (3-5 C atoms)
Ionization of 6M HCl
Bright light
Ionization of 6M Acetic Acid
Dim light
carboxylic acids are weak acids that ionize completely or slightly in water?
Slightly
all carboxylic acids react with what compound to form carboxylate salts?
Strong bases
reaction of carboxylic acid and alcohol
Esterification
reverse esterification; ester and water reaction through a strong catalyst
Ester hydrolysis
is the hydrolysis of an organic comound under basic conditions in which a carboxylate salts is one of the product
Saponification
is commonly used to refer to the reaction of a base with a fat or oil to form soap
Saponification
what is the process the allows the soap to clean clothes?
Dualism
is produced when a carboxylic acid loses one or more acidic H atoms
carboxylate ion
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.
Acetone
