Analytical Chemistry Modules 6-8: Spectrometry & Chromatography Principles | CHEM219

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CHEM219 / CHEM 219 MODULES 6 – 8 & FINAL

EXAMS: (LATEST UPDATES STUDY BUNDLE

PACKAGE) PRINCIPLES OF ORGANIC CHEMISTRY WITH

LAB | QUESTIONS & ANSWERS | GRADE A | 100%

CORRECT - PORTAGE LEARNING

amine .....ANSWER.....derivative of ammonia where one or more

hydrogen replaced by carbon-based groups

primary amine .....ANSWER.....R-NH2

secondary amine .....ANSWER.....R2NH

tertiary amine .....ANSWER.....R3N

Ammonia .....ANSWER.....NH3

quarternary amine .....ANSWER.....a configuration in which

nitrogen has four bonds with other atoms and, as such, the

molecule has an electron deficit

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name by alkyl group +amine at the end .....ANSWER.....naming

simple amines

name parent chain and then name amine as amino substituent

.....ANSWER.....naming amines with additional functional groups

present

name amine as N-substituted where largest compound = parent

name other groups as N-alkyl substituents .....ANSWER.....naming

unsymmetrically substituted 2nd and 3rd degree amines

amino groups direct attached to aromatic ring

.....ANSWER.....aryl amine naming

trigonal pyramidal, 109.5 bond angle .....ANSWER.....amine

geometry

polar .....ANSWER.....amine polar or nonpolar?

primary and secondary amines can form intermolecular

hydrogen bonds .....ANSWER.....amine hydrogen bonding?

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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

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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

alkyl halide added to an ammonia to create an amine

.....ANSWER.....alkylation of ammonia and amines

secondary amine (R2NH) .....ANSWER.....what does a primary

amine alkylate to?

tertiary amine (R3N) .....ANSWER.....What does a secondary

amine alkylate to?

quaternary ammonium salt .....ANSWER.....what does a tertiary

amine alkylate to?