Specify which of the following statements regarding dehydration
lab (dehydration of 2-methylcyclohexanol) are True or False?
a) Both product alkenes will have an equal affinity for the GC
column material.
b) More 1-methylcyclohexene is formed because it involves a less
stable carbocation intermediate, compared to the other
possibility
c) This reaction is not regioselective.
d) A tertiary alcohol would not undergo this dehydration.
e) Distilling at too high a temperature will result in
contamination of the products.
Determination of Benzoic Acid and Caffeine in Soft Drinks via
Liquid Chromatography.
Q1: This experiment is reverse phase chromatography.
What does that tell you about the polarity of the mobile and
stationary phases? (2 pts)
Q2: Which compound do you expect to elude first from the
column and why? (2 pts)
Q3: What is the definition of an isocratic separation?
(2 pts)
Q4: What is an acceptable value for the resolution of a
column? (2 pts)
Q5: Do you expect...
The three variables which are most easily changed in Gas
Chromatography are the Carrier gas Flow Rate, the Temperature of
the Column, and the Polarity of the Column. How might each of these
effect the appearance of your GC trace?
What property of compounds causes separation via gas
chromatography? Will compounds of a higher or lower value of this
property elute off the column first? How do you tell the number of
components and how to calculate their percentage?
How
do I calculate the corrected area of an unknown in a gas
chromatography experiment when you have a standardized set of
knowns? Which Rf do you use?