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Chem 219 Module 2 Complete Study Guide With Solved Questions

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CHEM 219 MODULE 2 COMPLETE STUDY GUIDE WITH SOLVED QUESTIONS

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CHEM 219 MODULE 2 COMPLETE STUDY
GUIDE WITH SOLVED QUESTIONS

◉ polar.
Answer: amine polar or nonpolar?


◉ primary and secondary amines can form intermolecular hydrogen
bonds.
Answer: amine hydrogen bonding?


◉ higher than alkanes
lower than alcohols.
Answer: boiling points of 1st and 2nd degree amines?


◉ N-H bond weaker than O-H bonds bc N is less electronegative than
O.
Answer: why are amines lower bp than alcohols?


◉ can accept hydrogen bonds but cannot make them
intermolecularly.
Answer: can tertiary amines have hydrogen bonds?

, ◉ small amines (up to 6 carbons) are soluble.
Answer: are amines soluble in water? in alcohol?


◉ solubility decreases as molecular weight increases.
Answer: amine aqueous solubility does what?


◉ basic and nucleophilic.
Answer: are amines acidic or basic?


◉ pKb (lower score = more basic).
Answer: what measures bases


◉ alkyl: 3-4, aromatic: 9 (resonance sharing in aromatic).
Answer: pKb of alkyl amines vs aromatic amines


◉ amine.
Answer: ammonia + alkyl halide =


◉ 1. ammonia as nucleophile displaces halide ion via Sn2 reaction
2.sodium hydroxide (base) added to deprotonate the
alkylammonium cation to produce the "free base" of the amine.
Answer: 2 steps to alkylation of ammonia and amines

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