lab quiz 2 Flashcards
1
Q
solvents for hydrocarbons
A
hexanes, toluene, petroleum ether
2
Q
solvents for alcohols
A
ethanol
3
Q
solvent for carboxylic acids
A
ethanol
4
Q
solvent for carbonyl
A
ethyl acetate or acetone
5
Q
vacuum filter
A
open system, then turn off water
6
Q
boiling stick
A
nucleation site for bubbles
7
Q
why is minimum solvent best?
A
maximizes yield.
8
Q
dual with methanol
A
water
9
Q
dual with ether
A
acetone, methanol
10
Q
dual with acetone
A
petroleum ether
11
Q
dual with toluene
A
petroleum ether
12
Q
dual with ethanol
A
toluene, water, petroleum ether
13
Q
dual with ethyl acetate
A
hexanes, ether
14
Q
dual with methylene chloride
A
methanol
15
Q
melting point
A
vapor pressure solid equals vapor pressure liquid. heat raises solid vp
