ESTERS Flashcards
What is the name of the reaction that produces ester?
Esterification
or
Condensation reaction
What is the functional group of ester?
Ester link: -COO-
How are esters formed ? (what are the two reactants use?)
Esters are formed by condensation reaction between an alcohol and a carboxylic acid
In a condensation reaction OR esterification of alcohol and carboxylic acids two molecules are formed, what are they?
An ester and Water
Give some uses of esters
Solvents (for example Nail polish)
in perfums
in food (for flavour)
Are esters polar or non-polar molecules?
non-polar
What is the name of the reaction that produces alcohols and carboxylic acids from esters?
Hydrolysis reaction
Name the esters formed from condensation of: methanoic acid and propanol
propyl methanoate
Name the esters formed from condensation of: butanol and hexanoic acid
Butyl hexanoate
Name the esters formed from condensation of: Pentanol and heptanoic acid
pentyl heptanoate
What are the alcohol and carboxylic acid used to make the ester: ethyl butanoate?
ethanol and butanoic acid
What is the alcohol and carboxylic acid used to make the ester: hexyl octanoate
hexanol and octanoic acid
When making ester in the classroom, a hot water bath is used to increase the rate of the reaction. Why don’t we use a bunsen burner?
Because alcohols is used and it is flammable
What piece of equipment can be used to condense the volatile ester back to liquid?
a condenser
Name this ester and give the name of the alcohols and carboxylic acid used to make this ester.
propyl propanoate
made from: propanol and propanoic acid
Name these molecules and the ester form by condensation reaction
ethanoic acid and methanol
ester formed: methyl ethanoate
Name this ester and the products that would be formed from the hydrolysis of this ester.
ester: propyl ethanoate
alcohols: propanol / carboxylic acid: ethanoic acid
Name this ester
ethyl butanoate
name this ester
butyl butanoate
