1
CHEM 2364 Final Alfonso Questions with Correct
Answers | Updated (100% Correct Answers)
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.
Answer: Remove a small amount of the bottom layer, and add a few drops of
water to see if it is miscible.
Which of the following statements are correct regarding the use of a separatory
funnel? Answer: Venting a separatory funnel is important in part because the
acid-base reactions can generate gas products, which creates an explosion
hazard.
Match the purpose of each reagent to the reagent in the separation for Exp. 4.
Wash the organic layer Answer: NaCl (brine)
Match the purpose of each reagent to the reagent in the separation for Exp. 4.
Remove water from the organic layer Answer: MgSO4
Match the purpose of each reagent to the reagent in the separation for Exp. 4.
Extract acetaminophen into the aqueous layer Answer: KOH
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,2
Which answer choice correctly explains partitioning (seen in Exps. 3, 4, and 5)?
Answer: When a molecule travels to the layer (or phase) that it is most attracted
to due to similar intermolecular forces.
Which reagent(s) can be used to deprotonate acetaminophen in Exp. 5? Select all
that are correct. Answer: KOH
Match the purpose of each reagent to the reagent in the separation for Exp. 5.
Protonate aspirin or acetaminophen Answer: HCl
Match the purpose of each reagent to the reagent in the separation for Exp. 5.
Extract aspirin into the aqueous layer Answer: K2HPO4
Match the purpose of each reagent to the reagent in the separation for Exp. 5.
Organic layer solvent Answer: ethyl acetate
EXP 5 acetysalicylic acid, acetaminophen, caffeine -> K2HPO4 -> what goes in
the 1st organic layer Answer: caffeine (C)
EXP 5 acetysalicylic acid, acetaminophen, caffeine -> K2HPO4 -> what goes in
the 1st aq layer Answer: acetylsalicylate [ AA(ion) ]
EXP 5 acetysalicylic acid, acetaminophen, caffeine -> KOH -> what goes in the
2nd organic layer Answer: caffeine
EXP 5 acetysalicylic acid, acetaminophen, caffeine -> KOH -> what goes in the
2nd aq layer Answer: acetmainophenoxide [ A(ion) ]
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, 3
Experiment 6
Select the answer that correctly explains the setup for the water flow in the
condenser: Answer: The water flows in at the bottom barb and out at the top,
since the water is coldest when coming from the tap and will heat up as it runs
through the condenser.
Experiment 6
Given the following two reagents, which is likely the product if they undergo a
Diels-Alder reaction Answer: LOOK AT PIC
In a microscale version of Exp. 6, 0.281 g anthracene (C14H10) and 0.194 g of
maleic anhydride (C4H2O3) are reacted as shown:
Determine the theoretical yield of the limiting reagent in grams.
Make sure your answer has the correct units and the correct number of
significant figures. Answer: 0.281 g C14H10 x 1 mol C14H10 x 1 mol C4H2O3 x
276.3 g
178.23 g C14H10 1 mol C14H10 1 mol C4H2O3
= 0.436 g
Experiment 6
Below is a developed TLC plate for a student who was analyzing their Diels-Alder
reaction and product. Which answer choice is likely true about the results of this
reaction?
© 2026 All rights reserved
CHEM 2364 Final Alfonso Questions with Correct
Answers | Updated (100% Correct Answers)
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.
Answer: Remove a small amount of the bottom layer, and add a few drops of
water to see if it is miscible.
Which of the following statements are correct regarding the use of a separatory
funnel? Answer: Venting a separatory funnel is important in part because the
acid-base reactions can generate gas products, which creates an explosion
hazard.
Match the purpose of each reagent to the reagent in the separation for Exp. 4.
Wash the organic layer Answer: NaCl (brine)
Match the purpose of each reagent to the reagent in the separation for Exp. 4.
Remove water from the organic layer Answer: MgSO4
Match the purpose of each reagent to the reagent in the separation for Exp. 4.
Extract acetaminophen into the aqueous layer Answer: KOH
© 2026 All rights reserved
,2
Which answer choice correctly explains partitioning (seen in Exps. 3, 4, and 5)?
Answer: When a molecule travels to the layer (or phase) that it is most attracted
to due to similar intermolecular forces.
Which reagent(s) can be used to deprotonate acetaminophen in Exp. 5? Select all
that are correct. Answer: KOH
Match the purpose of each reagent to the reagent in the separation for Exp. 5.
Protonate aspirin or acetaminophen Answer: HCl
Match the purpose of each reagent to the reagent in the separation for Exp. 5.
Extract aspirin into the aqueous layer Answer: K2HPO4
Match the purpose of each reagent to the reagent in the separation for Exp. 5.
Organic layer solvent Answer: ethyl acetate
EXP 5 acetysalicylic acid, acetaminophen, caffeine -> K2HPO4 -> what goes in
the 1st organic layer Answer: caffeine (C)
EXP 5 acetysalicylic acid, acetaminophen, caffeine -> K2HPO4 -> what goes in
the 1st aq layer Answer: acetylsalicylate [ AA(ion) ]
EXP 5 acetysalicylic acid, acetaminophen, caffeine -> KOH -> what goes in the
2nd organic layer Answer: caffeine
EXP 5 acetysalicylic acid, acetaminophen, caffeine -> KOH -> what goes in the
2nd aq layer Answer: acetmainophenoxide [ A(ion) ]
© 2026 All rights reserved
, 3
Experiment 6
Select the answer that correctly explains the setup for the water flow in the
condenser: Answer: The water flows in at the bottom barb and out at the top,
since the water is coldest when coming from the tap and will heat up as it runs
through the condenser.
Experiment 6
Given the following two reagents, which is likely the product if they undergo a
Diels-Alder reaction Answer: LOOK AT PIC
In a microscale version of Exp. 6, 0.281 g anthracene (C14H10) and 0.194 g of
maleic anhydride (C4H2O3) are reacted as shown:
Determine the theoretical yield of the limiting reagent in grams.
Make sure your answer has the correct units and the correct number of
significant figures. Answer: 0.281 g C14H10 x 1 mol C14H10 x 1 mol C4H2O3 x
276.3 g
178.23 g C14H10 1 mol C14H10 1 mol C4H2O3
= 0.436 g
Experiment 6
Below is a developed TLC plate for a student who was analyzing their Diels-Alder
reaction and product. Which answer choice is likely true about the results of this
reaction?
© 2026 All rights reserved
