CHEM 2364 Final Alfonso questions
well answered
Remove a small amount of the bottom layer, and add a few drops of water to see if it is miscible.
- correct answer ✔✔In a certain scenario, you have a separatory funnel containing two
unknown colorless, clear, and immiscible layers. How would you determine which is is the
organic layer and which is the aqueous layer?
Read the options carefully below. Select the answer that accomplishes this.
Venting a separatory funnel is important in part because the acid-base reactions can generate
gas products, which creates an explosion hazard. - correct answer ✔✔Which of the following
statements are correct regarding the use of a separatory funnel?
NaCl (brine) - correct answer ✔✔Match the purpose of each reagent to the reagent in the
separation for Exp. 4.
Wash the organic layer
MgSO4 - correct answer ✔✔Match the purpose of each reagent to the reagent in the
separation for Exp. 4.
Remove water from the organic layer
KOH - correct answer ✔✔Match the purpose of each reagent to the reagent in the separation
for Exp. 4.
Extract acetaminophen into the aqueous layer
, When a molecule travels to the layer (or phase) that it is most attracted to due to similar
intermolecular forces. - correct answer ✔✔Which answer choice correctly explains partitioning
(seen in Exps. 3, 4, and 5)?
KOH - correct answer ✔✔Which reagent(s) can be used to deprotonate acetaminophen in Exp.
5? Select all that are correct.
HCl - correct answer ✔✔Match the purpose of each reagent to the reagent in the separation for
Exp. 5.
Protonate aspirin or acetaminophen
K2HPO4 - correct answer ✔✔Match the purpose of each reagent to the reagent in the
separation for Exp. 5.
Extract aspirin into the aqueous layer
ethyl acetate - correct answer ✔✔Match the purpose of each reagent to the reagent in the
separation for Exp. 5.
Organic layer solvent
caffeine (C) - correct answer ✔✔EXP 5 acetysalicylic acid, acetaminophen, caffeine -> K2HPO4 -
> what goes in the 1st organic layer
acetylsalicylate [ AA(ion) ] - correct answer ✔✔EXP 5 acetysalicylic acid, acetaminophen,
caffeine -> K2HPO4 -> what goes in the 1st aq layer
well answered
Remove a small amount of the bottom layer, and add a few drops of water to see if it is miscible.
- correct answer ✔✔In a certain scenario, you have a separatory funnel containing two
unknown colorless, clear, and immiscible layers. How would you determine which is is the
organic layer and which is the aqueous layer?
Read the options carefully below. Select the answer that accomplishes this.
Venting a separatory funnel is important in part because the acid-base reactions can generate
gas products, which creates an explosion hazard. - correct answer ✔✔Which of the following
statements are correct regarding the use of a separatory funnel?
NaCl (brine) - correct answer ✔✔Match the purpose of each reagent to the reagent in the
separation for Exp. 4.
Wash the organic layer
MgSO4 - correct answer ✔✔Match the purpose of each reagent to the reagent in the
separation for Exp. 4.
Remove water from the organic layer
KOH - correct answer ✔✔Match the purpose of each reagent to the reagent in the separation
for Exp. 4.
Extract acetaminophen into the aqueous layer
, When a molecule travels to the layer (or phase) that it is most attracted to due to similar
intermolecular forces. - correct answer ✔✔Which answer choice correctly explains partitioning
(seen in Exps. 3, 4, and 5)?
KOH - correct answer ✔✔Which reagent(s) can be used to deprotonate acetaminophen in Exp.
5? Select all that are correct.
HCl - correct answer ✔✔Match the purpose of each reagent to the reagent in the separation for
Exp. 5.
Protonate aspirin or acetaminophen
K2HPO4 - correct answer ✔✔Match the purpose of each reagent to the reagent in the
separation for Exp. 5.
Extract aspirin into the aqueous layer
ethyl acetate - correct answer ✔✔Match the purpose of each reagent to the reagent in the
separation for Exp. 5.
Organic layer solvent
caffeine (C) - correct answer ✔✔EXP 5 acetysalicylic acid, acetaminophen, caffeine -> K2HPO4 -
> what goes in the 1st organic layer
acetylsalicylate [ AA(ion) ] - correct answer ✔✔EXP 5 acetysalicylic acid, acetaminophen,
caffeine -> K2HPO4 -> what goes in the 1st aq layer
