Homework Answers
(D)
All of these.
Acids and bases of all salts that are water soluble in this experiment.
8 move the component of interest to the aqueous layer.
Heat enable selective extraction by reacting a weak base and a strong acid followed by reacting a strong base and weak acid.
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Lab 7: Question 4 Homework. Unanswered What is the purpose of adding aqueous base to extract...
Lab 7: Question 6 Homework - Unanswered Why should Il be protonated, rather than deprotonated, in...
Lab 7: Question 6 Homework - Unanswered Why should Il be protonated, rather than deprotonated, in order to make it water soluble for extraction from an organic solvent? ♡ on olemas O A The anion derived from Il is too strong and reactive a base to remain stable under aqueous extraction conditions Protonation of amines to form ammonium salts affords a less reactive salt compared to the deprotonation product O C Both a and b are correct
Lab 7: Question 8 Homework – Unanswered Why would an acid-base extraction procedure be inefficient in...
Lab 7: Question 8 Homework – Unanswered Why would an acid-base extraction procedure be inefficient in separating 1-111? LOHCOOH M 1,0 r.com O A Compounds II and III are water soluble in their neutral forms The pka values of ll and Ill are not different enough to enable selective deprotonation based on base strength Ос The deprotonated form of Il that is isolated after extraction is too stable to be protonated to recover neutral Il
Lab 7: Question 8 Homework – Unanswered Why would an acid-base extraction procedure be inefficient in...
Lab 7: Question 8 Homework – Unanswered Why would an acid-base extraction procedure be inefficient in separating 1-111? LOHCOOH M 1,0 r.com O A Compounds II and III are water soluble in their neutral forms The pka values of ll and Ill are not different enough to enable selective deprotonation based on base strength Ос The deprotonated form of Il that is isolated after extraction is too stable to be protonated to recover neutral Il
Lab 7: Question 5 Homework – Unanswered How would one separate each of I, II and...
Lab 7: Question 5 Homework – Unanswered How would one separate each of I, II and Ill when dissolved together in diethyl ether? СА Add a weak base in water to extract the salt of III, then add a strong base in water to the diethyl ether to extract the salt of II B O Add a weak h Add a weak base in water to extract the salt of II, then add a strong base in water to the...
Lab 7: Question 7 Homework – Unanswered Why would it be relatively challenging to separate I...
Lab 7: Question 7 Homework – Unanswered Why would it be relatively challenging to separate I and Il via an acid-base extraction? O A Only one of these is soluble in organic solvents O B Both are relatively neutral O C Compound II is more polar
Lab 7: Question 2 Homework. Unanswered Why is aqueous NaHCO3 used for the initial extraction of...
Lab 7: Question 2 Homework. Unanswered Why is aqueous NaHCO3 used for the initial extraction of the unknown sample? Why was NaOH not used prior to NaHCO3? O A Because NaHCO3 deprotonates 3-chlorobenzoic acid and NaOH does not O B Because NaOH deprotonates both 3-chlorobenzoic acid and 2-naphthol 0 C Because NaHCO3 deprotonates both 3-chlorobenzoic acid and 2-naphthol
Question 7 (1 point) To extract the reaction product from the aqueous reaction mixture, dichloromethane will...
Question 7 (1 point) To extract the reaction product from the aqueous reaction mixture, dichloromethane will be added and liquid-liquid extraction will be carried out. Which layer will be the organic (dichloromethane) layer? The density of dichloromethane is 1.33 g/mL. bottom layer depends on the day the middle layer top layer Question 1 (1 point) What class of compound do you always get if you reduce an aldehyde? O 2º alcohol O carboxylic acid ketone 1° alcohol
Attached below are the pages from this lab report to help give context to the questions....
Attached below are the pages from this lab report to help give
context to the questions. Please be as detailed as possible when
answering the questions and include any relevant information about
intermolecular forces at play. Thank you for your help!
Here are the questions which I need answered. Thank you in
advance for your help! :) Please be as detailed as possible and
discuss any intermolecular forces in detail if they are relevant to
the question. Thanks!
PARTA. SEPARATION...
using the procedures, we used dichloromethane as the unknown mixture and i was able to extract...
using the procedures, we used dichloromethane as the unknown
mixture and i was able to extract benzoic acid for an acid,
5-chloro-2-methoxyanaline for a base compound and biphenyl for
neutral compound.
i don't know if that answers the missing part but if it didn't
could you be specific please? thank you!
2. Construct a flow chart of the acid-base extraction you carried out. Use the specific structure of the compounds isolated. Don't use the molecular formula. (15 pts) We used...
Post Lab Questions what is the purpose of glacial acetic acid in this reaction? (5 points)...
Post Lab Questions what is the purpose of glacial acetic acid in this reaction? (5 points) 2. How does KI-starch paper work? What is the source of the dark color 3. What is the purpose of adding saturated aqueous sodium bisult What reaction is taking place? Write out the bar my saturated aqueous sodium bisulfite to the reaction mixture? is taking place? Write out the balanced equation for this reaction. Why do you e kl-starch paper test after adding the...
Lab 7: Question 6 Homework - Unanswered Why should Il be protonated, rather than deprotonated, in order to make it water soluble for extraction from an organic solvent? ♡ on olemas O A The anion derived from Il is too strong and reactive a base to remain stable under aqueous extraction conditions Protonation of amines to form ammonium salts affords a less reactive salt compared to the deprotonation product O C Both a and b are correct
Lab 7: Question 8 Homework – Unanswered Why would an acid-base extraction procedure be inefficient in separating 1-111? LOHCOOH M 1,0 r.com O A Compounds II and III are water soluble in their neutral forms The pka values of ll and Ill are not different enough to enable selective deprotonation based on base strength Ос The deprotonated form of Il that is isolated after extraction is too stable to be protonated to recover neutral Il
Lab 7: Question 8 Homework – Unanswered Why would an acid-base extraction procedure be inefficient in separating 1-111? LOHCOOH M 1,0 r.com O A Compounds II and III are water soluble in their neutral forms The pka values of ll and Ill are not different enough to enable selective deprotonation based on base strength Ос The deprotonated form of Il that is isolated after extraction is too stable to be protonated to recover neutral Il
Lab 7: Question 5 Homework – Unanswered How would one separate each of I, II and Ill when dissolved together in diethyl ether? СА Add a weak base in water to extract the salt of III, then add a strong base in water to the diethyl ether to extract the salt of II B O Add a weak h Add a weak base in water to extract the salt of II, then add a strong base in water to the...
Lab 7: Question 7 Homework – Unanswered Why would it be relatively challenging to separate I and Il via an acid-base extraction? O A Only one of these is soluble in organic solvents O B Both are relatively neutral O C Compound II is more polar
Lab 7: Question 2 Homework. Unanswered Why is aqueous NaHCO3 used for the initial extraction of the unknown sample? Why was NaOH not used prior to NaHCO3? O A Because NaHCO3 deprotonates 3-chlorobenzoic acid and NaOH does not O B Because NaOH deprotonates both 3-chlorobenzoic acid and 2-naphthol 0 C Because NaHCO3 deprotonates both 3-chlorobenzoic acid and 2-naphthol
Question 7 (1 point) To extract the reaction product from the aqueous reaction mixture, dichloromethane will be added and liquid-liquid extraction will be carried out. Which layer will be the organic (dichloromethane) layer? The density of dichloromethane is 1.33 g/mL. bottom layer depends on the day the middle layer top layer Question 1 (1 point) What class of compound do you always get if you reduce an aldehyde? O 2º alcohol O carboxylic acid ketone 1° alcohol
Attached below are the pages from this lab report to help give
context to the questions. Please be as detailed as possible when
answering the questions and include any relevant information about
intermolecular forces at play. Thank you for your help!
Here are the questions which I need answered. Thank you in
advance for your help! :) Please be as detailed as possible and
discuss any intermolecular forces in detail if they are relevant to
the question. Thanks!
PARTA. SEPARATION...
using the procedures, we used dichloromethane as the unknown
mixture and i was able to extract benzoic acid for an acid,
5-chloro-2-methoxyanaline for a base compound and biphenyl for
neutral compound.
i don't know if that answers the missing part but if it didn't
could you be specific please? thank you!
2. Construct a flow chart of the acid-base extraction you carried out. Use the specific structure of the compounds isolated. Don't use the molecular formula. (15 pts) We used...
Post Lab Questions what is the purpose of glacial acetic acid in this reaction? (5 points) 2. How does KI-starch paper work? What is the source of the dark color 3. What is the purpose of adding saturated aqueous sodium bisult What reaction is taking place? Write out the bar my saturated aqueous sodium bisulfite to the reaction mixture? is taking place? Write out the balanced equation for this reaction. Why do you e kl-starch paper test after adding the...
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