Column chromatography is useful in the separation of compounds.
Using the theory behind the technique, explain how it works. Why do
you think fluorene and 9-fluorenone where are the components of the
mixture you attempted to separate?
Distillation is a technique that is to purify liquid compounds.
Explain how distillation is used to separate the target product
from any residual unreacted starting material.
[2.0 Marks]
Upon completion of the reaction (before filtration), an
additional 4.0 mL of 1.0 M NaOH/EtOH was added to the reaction.
What was the purpose of this step? Include a chemical reaction as
part of your answer. [1 Mark]
The term “side reactions” refers to any chemical reaction that
can occur that form...
In what ways can the Earned Value Analysis method be used to
monitor the project in an integrated way without affecting the
overall schedule and budget of a project?
Number the following compounds in order of their elution from a
silica column, using benzene as the solvent. The compound numbered
one should be the first compound off of the column.
CH3CH2OCH3
CH3(CH2)3OH
CH3CO2H
CH3(CH2)8CH3
QUESTION 37
Match the appropriate term to the definition or technique. Each
technique can be used only once. As such, choice the best
definition
-
A. B.
C. D.
Hypothesis Test
-
A. B.
C. D.
ANOVA
-
A. B.
C. D.
Two Way ANOVA
...
Explain how the nonprobability technique of quota sampling can
be used to mimic the probability technique of stratified random
sampling. Give an example.
One carbon groups from various sources can be used for the
synthesis of new compounds. Outline the steps involved in the
transfer of a one carbon group from glycine to homocysteine. How
can the product of these reactions be used in further one carbon
transfers?
elect all statements below that apply to Column
Chromatography.
Column chromatography can be used to purify small (< 0.1 g)
sample mixtures.
The compound in a mixture with the lowest Rf value will exit the
column first.
Column chromatography is often used to purify large (10 g)
sample mixtures.
Column chromatography is used mainly as an analytical tool.