Organic Chemistry DAT

Samuel Flashcards Quizlet

CH3+ is what hybridized

sp2

sp has __% s character

50

ph < pKa NH2

OH

COOH

NH2--> NH3+

oh and cooh same

ph > pKa NH2

OH

COOH

NH2 same

OH --> O-

COOH --> COO-

how to judge D vs L amino acid

D = OH closest to bottom is right, NH3 is right

when to use UV vis

conjugated double bonds

mass spec calculation

C - H/2 - X/2 + N/2 + 1

13C spec: esters, amides and carb acids

160-180

13C spec aldehydes and ketones

200

13C spec aromatic

110-160

1H spec carb acids and amide

14-12

1H spec phenol and aldehyde

10

1H spec aromatic

8-6

1H spec alcohol and amine

0.5-5.5

tollen's test is for ___ and shows __

aldehydes ; silver mirror

iodoform test is for ___ and shows __

methyl ketones ; yellow

silver nitrate in OH is for ___ and shows

alkyl halides, Ag compound

bromine test is for __ and shows __

alkenes and alkynes ; brown color disappears

baeyer test is for ___ and shows

alkenes and alkynes ; purple to brown

jones test is for __ and shows

1,2 alcohols ; blue-green

lucas test is for __ and shows

2 and 3 benzylic alcohols, cloudy

extraction separates based on __

density

how to separate carb acids via extraction

NaOH/NaHCO3 --> HCl

how to separate phenols via extraction

NaOH--> HCl

how to separate amines via extraction

HCl

distillation is separation of

two volatile liquids

fractional distillation is separation of

2 volatile liquids close in temp

recrystallization separates

2 nonvolatile compounds

gas liquid chromatography separates by

BP

gas liquid chromatography what comes off fastest

lowest BP

what is most effective at separating volatile compounds

gas liquid chromatography

thin layer chromatography separates __ by

nonvolatile by solubility

thin layer chromatography what travels fastest

most nonpolar

thin layer chromatography polar compounds have __ Rf

small

how to increase Rf

EtOAc

column chromatography separates by

polarity

column chromatography what is fastest

nonpolar

column chromatography what is collected last

most polar

column chromatography evaporates off the

eluent

kinetic product: forms ___, __ stable, __ stable carbocation

faster, less, more

initation has __ radials on left side

no