Amines, Amides, Amino Acids and Polymers

HideShow resource information
  • Created by: Sopha8
  • Created on: 12-04-15 12:47
What is a cationic surfactant? What can they be used for?
quaternary ammonium ion head is soluble whilst hydrocarbon tail isnt. used in hair products as +vecharged part attracted to -ve on surface so coats it preventing build up of static
1 of 10
Why are ammonia and derivatives of it bronsted-lowry bases? Which is the strongest base and why?
lone pair on N donated to H+ forming dative covalent bond. weakest=aromatic as electron denisty pulled drawn into delocalised ring so lone pair less avalible. then ammonia. stongest=amine as alkly group pushes electrons onto N so electron denisty
2 of 10
What 2 ways can amined be formed? what are their conditions
1-from haloalkanes with excess ammonia and heat 2-from nitriles (either by catalytic hydrogenation- nickle catalyst high t and p or using strong reducing agent-LiAlH and dilute acid)
3 of 10
Draw and name the mechanism for the formation of amines from halolkanes
:
4 of 10
How are aromatic amines formed?
reduction of nitrobenzene by refluxing with tin and conc.HCL and then adding NaOH
5 of 10
Write 2 equations to show why amio acids are amphoteric
act as acid= -COOH --> -COO + H+ act as base= -NH + H+ --> -NH +
6 of 10
Draw an amino acid as a) a zwitterion b) at low pH and c) at high pH
:
7 of 10
What method is used to seperate and identify amino acids from a mixture?
chromatography. amino acids move up paper with solvent but at different rates, colour with ninhydrin to see spots and idenitfy
8 of 10
What is an addition polymer? What is a condensation polymer?
1-double bond on alkene breaks and they join together 2- two types of monomers with at least 2 functional grups each join together by removal of water molecule
9 of 10
What are the 3 examples of condesation polymers used in real life that you need to know?
polyamides: 1-Nylon 6,6=1,6-diaminohexane + hexandioic acid 2-Kevlar=benzene-1,4-dicarboxylic acid + benzene-1,4-diamine polyester: 3-Terylene=benzene-1,4-dicarboxylic acid + ethane-1,2-diol
10 of 10

Other cards in this set

Card 2

Front

Why are ammonia and derivatives of it bronsted-lowry bases? Which is the strongest base and why?

Back

lone pair on N donated to H+ forming dative covalent bond. weakest=aromatic as electron denisty pulled drawn into delocalised ring so lone pair less avalible. then ammonia. stongest=amine as alkly group pushes electrons onto N so electron denisty

Card 3

Front

What 2 ways can amined be formed? what are their conditions

Back

Preview of the front of card 3

Card 4

Front

Draw and name the mechanism for the formation of amines from halolkanes

Back

Preview of the front of card 4

Card 5

Front

How are aromatic amines formed?

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Chemistry resources:

See all Chemistry resources »See all Polymers resources »