6.2 Flashcards
What is a lewis base?
Donates a lone pair
What can amines act as?
Weak bases because they can accept a H+ or they can donate a lone pair form the nitrogen
Amine + acid
Alkyl ammonium salt
Isoelectric point
When there’s no net charge due to zwitterion balancing (amphoteric)
What are optical isomer pairs called?
Enantiomers
What does a positive optical isomer mean?
Rotates the plane of light on a clockwise direction
ora for negative
What are the products of hydrolysis of polyesters with acid?
Alcohol and carboxylic acid
What are the products of hydrolysis of polyesters with alkali?
Alcohol and salt eg. COO-Na+
What are the products of hydrolysis of polyamides with acid?
Carboxylic acid and ammonium salt NH3+
What are the products of hydrolysis of polyamides with alkali?
Amine and a salt COO-Na+
How is a hydroxynitrile made?
Nucleophilic addition with an aldehyde
How is a nitrile made?
Nucleophilic substitution with a haloalkane
What is a racemic mixture?
Half and half of optical isomer enantiomers
How do you find the melting point?
Melt in capillary tube
Find melting point
Compare to known values of melting points for that compound
If it is a sharp melting point close to the known value, it is pure
