Final Flashcards by Kennadi Stacy

Q

B car < lyco?

A

Closed rings

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Q

Vitamin B car turn but not lyco?

A

A

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Q

Lyco found?

A

Tomato

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Q

Technique used to evap solvent?

A

Roto evap

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Q

Lyco and B car mix TLC?

A

CH2Cl2/ pet eth

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Q

Lyco or B car polar?

A

Lyco

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Q

Why add sodium carb to extract?

A

Acids stay soluble

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Q

100 mL, H2O, 4 mL dieth, 1 layer, 6 more mL, clear on top?

A

Dieth soluble in H2O some

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Q

Partition coefficient?

A

Or/aq

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Q

Method to pure caffeine?

A

TLC

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Q

Is aq always at bottom of funnel?

A

No density

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Q

Catalyst for aspirin?

A

H2SO4

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Q

Rxn for aspirin?

A

Ester

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Q

First product aspirin?

A

O=|—OH
/O\llO/

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Q

Functional group of the first product of aspirin?

A

Carbox, ester

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Q

Aspirin acid function?

A

Neutral

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Q

Caffeine?

A

Left: \N
Right: IIO
Left low: IIO
Right low: N\

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Q

Is binder soluble org solu?

A

Yes

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Q

Aspirin stomach bleed?

A

Yes

Q

Structure ACE?

A

Top IOH

Q

Silica polar stationary?

A

Yes

Q

Sub endo or exo?

A

Endo needs energy to change

Q

Pressure not reduced?

A

Nothing

Q

Opposite of sub?

A

Deposition

Q

Why sample not melt during sub?

A

Some compound vap press

Q

Sub

A

Top in
Bottom out
Back vac

Q

Role reduced pressure?

A

Reduce sub point

Q

Phase for vap?

A

Low—>vap

Q

Vacuum distill use?

A

Mix at pressure lower

Q

Steam distilled use?

A

Mix heat sensitive

Q

Head temp?

A

Temp vapor higher boil mix

Q

Not beer law?

A

Expo relation

Q

Common absorb for chromatography?

A

SiO2

Q

Strong interactions in org solv?

A

Hydrogen bonds

Q

Chromatography?

A

Separate compounds based on part Mobile and station?

Q

Silica station what low RF on TLC?

A

High polar

Q

Higher polar use silica absorb CC?

A

Speed up

Q

Melt lower temp?

A

Intermolecular first weaker

Q

Eutectic point?

A

Melting point at min

Q

Pure substance melt pt?

A

2 degrees Celsius

Q

Recrystal need?

A

Boil pt higher 60 degrees Celsius

Q

Soluble constant depends?

A

Solv temp

Q

A=RF=.75 and B=RF=.3?

A

B absorbs more than A

Q

RF?

A

Distance station/ distance spot travel

Q

RF is 1?

A

Compound Dragged/ dieth eth

Q

Increase polar?

A

Dieth eth —> ethanol

Q

Spots streak TLC?

A

A lot concentrate