2436467
| Pregunta | Respuesta |
| What is characteristic or aromatic amines? | A benzene ring |
| Describe the structure of amino acid | \(NH_2\) group COOH group variable R group in the middle |
| Which amino acid is the simplest? | Glycine |
| Which has a higher BP, primary or tertiary amines and why? | Primary because they can hydrogen bond. |
| What do primary amines smell like? | Fishy with long chains and like ammonia for shorter chains |
| What is a stronger base ammonia or primary alkyl amines? | Primary alkyl amines because the alkyl group is electron pushing and enhances the LP on nitrogen. |
| Acyl chloride w/ phenyl amine --> | N-phenylamides |
| Steps for making paracetamol | nitrate phenol separate isomers produced by fractional distillation reduce 4-nitrophenol react 4-aminophenol w/ ethanoic anhydride paracetamol |
| Why don't aliphatic amines produce diazonium salts? | Because they are so unstable and decompose immediately even at low temperatures |
| In a coupling reaction is any \(N_{2(g)}\) produced? | No |
| Uses of nylon | Stockings amd tights Carpets Ropes that don't rot Bearings in machines |
| Properties and uses of Kevlar | Resists high temperatures low thermal conductivity high tensile strength sealants and adhesives bullet and stab-proof belts ropes replacement asbestos data transmission cables |
| Addition polymerisation joins... | 2 alkene molecules |
| Forming poly(ethenol) | Polymerise ethenyl ethanoate React with methanol causing ester exchange to form poly(ethanol) |
| Uses of poly(ethenol) | Disposable laundry bags Liquid detergent capsules |
| Do AAs dissolve in organic solvents? | No |
| When do Zwitteron ions exist? | At the isoelectric point; pH when the overall charge of the amino acid = 0 |
| Refluxing a protein with HCl does what? | Hydrolyses it into AAs |
| Rf = | Distance moved by AA ___________________________________ Distance moved by solvent |
| Describe 2-way paper chromatography | Where after 1 separation the paper is rotated 90 degrees and the substances/dots are separated again using a different solvent to try and separate 2 dots close together with similar Rf values |
| L or D enantiomers in living organisms? | L |
| The use of ninhydrin turns AA spots what colour? | Purple |
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