Homework Answers
A base is used. Typically 5% NaOH which is approximately same as 1.5 M NaOH.
So, the second last option is correct.
Comment if any problem
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Question 3 1 pts Which of the following is used to move the organic acid into...
Options for each question: 6 M HCL, 5% HCL solution, Dichloromethane, 6 M NaOH, 5% NaOH...
Options for each question: 6 M
HCL, 5% HCL solution, Dichloromethane, 6 M NaOH, 5% NaOH
solution
Question 8 Status: Not yet answered Points possible: 1.00 When separating benzoic acid, naphthalene, and aniline, identify the solution used for each described purpose. Reconstitute benzoic acid from aqueous layer Choose... Extract benzoic acid into the aqueous layer Choose... Reconstitute aniline from aqueous layer Choose.. Extract aniline into the aqueous layer Choose... Extract reconstituted benzoic acid out of the aqueous layer Choose... Extract...
Answer the following before coming to lab: 1.) Based on what you saw last week, which...
Answer the following before coming to lab: 1.) Based on what you saw last week, which enantiomer of tartaric acid would you expect to co- crystallize with (SS)-1,2-diammoniumcyclohexane? 2.) If you had a neutral aqueous solution of triethylamine, would you add acid or base in order to extract it with an organic solvent? 3.) Now, consider a dichloromethane solution of triethylamine. Would you extract with acidic aqueous or basic aqueous solution in order to get the triethylamine out of the...
Organic chemistry question 4. Benzoic acid is almost 12 times more soluble in dichloromethane than in...
Organic chemistry question
4. Benzoic acid is almost 12 times more soluble in dichloromethane than in water at room temperature (the distribution coefficient (K) is 11.7). a) Approximately how many grams of benzoic acid would be recovered in the organic layer if 10.0 g of benzoic acid dissolved in 100 mL of water was extracted with 100 mL of dichloromethane? Show calculations. b) Approximately how many grams of benzoic acid would be recovered if the water layer was extracted a...
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...
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
Question 12 1 pts Which of the following technique is primary used to purify organic compounds?...
Question 12 1 pts Which of the following technique is primary used to purify organic compounds? Thin layer chromatography O Reflux Distillation Recrystallization O Liquid-liquid extraction
explain the following answers 4. (3 pts) If a dichloromethane solution of the following four compounds...
explain the following answers
4. (3 pts) If a dichloromethane solution of the following four compounds was extracted with an aqueous solution of K CO3, which compound(s) (in conjugate base form) would be extracted into the aqueous layer? SH SO, IV A) I and II B) I, II and III C) III and IV D) IV 6. (3 pts) If a dichloromethane solution of the following four compounds was extracted with a mixture that consists of water and NaH, which...
Name: Date: Separation of Acid/Base/Neutral compounds using liquid-liquid extraction OCH CHO HN Benzocaine Molecular Weight: 165.19...
Name: Date: Separation of Acid/Base/Neutral compounds using liquid-liquid extraction OCH CHO HN Benzocaine Molecular Weight: 165.19 Melting Point: 88-90 °C 1,1-biphenyl Molecular Weight: 154.21 Melting Point: 68-70 °C trans-cinnamic acid Molecular Weight: 148.16 Melting Point: 132-135 °C Question 1: Identify the following compounds as Acid, Base or Neutral. (2 points) a. Benzocaine: b. Biphenyl: c. Trans-cinnamic acid: (2 points) _ (2 points) Question 2: Draw the structure in the box (5 points each): NaOH OCH,CH, HCM NaOHA HC form. Ples...
Acid/Base Extraction 1. Provide a flow chart detailing the acid/base extraction/separation of the compounds shown below....
Acid/Base Extraction
1. Provide a flow chart detailing the acid/base
extraction/separation of the compounds shown below. Your answer
must employ the following reagents: methylene chloride,
hydrochloric acid (1M & 6M), sodium hydroxide (1M & 6M),
10% sodium bicarbonate (aq). Clearly indicate the product(s) and
layers formed following each step of your separation scheme.
IMPORTANT: p-cresol is soluble in sodium hydroxide solution but
insoluble in neutral water or sodium bicarbonate solution. 2-
ethylbenzoic acid is soluble in both sodium hydroxide and...
1)When you perform a liquid-liquid extraction using a separatory funnel, which of the following organic solvent...
1)When you perform a liquid-liquid extraction using a separatory funnel, which of the following organic solvent is on the bottom of the aqueous phase and which is on top? (write your answer by the solvent name) a) Ethyl acetate b) hexane c) Dichloromethane d) diethyl ether 2) If you are performing a liquid-liquid extraction and you have a mix of a carboxylic acid and a non-acidic compound, which combination of solvents would you use for the separation? a) dichloromethane/HCI b)...
Options for each question: 6 M
HCL, 5% HCL solution, Dichloromethane, 6 M NaOH, 5% NaOH
solution
Question 8 Status: Not yet answered Points possible: 1.00 When separating benzoic acid, naphthalene, and aniline, identify the solution used for each described purpose. Reconstitute benzoic acid from aqueous layer Choose... Extract benzoic acid into the aqueous layer Choose... Reconstitute aniline from aqueous layer Choose.. Extract aniline into the aqueous layer Choose... Extract reconstituted benzoic acid out of the aqueous layer Choose... Extract...
Answer the following before coming to lab: 1.) Based on what you saw last week, which enantiomer of tartaric acid would you expect to co- crystallize with (SS)-1,2-diammoniumcyclohexane? 2.) If you had a neutral aqueous solution of triethylamine, would you add acid or base in order to extract it with an organic solvent? 3.) Now, consider a dichloromethane solution of triethylamine. Would you extract with acidic aqueous or basic aqueous solution in order to get the triethylamine out of the...
Organic chemistry question
4. Benzoic acid is almost 12 times more soluble in dichloromethane than in water at room temperature (the distribution coefficient (K) is 11.7). a) Approximately how many grams of benzoic acid would be recovered in the organic layer if 10.0 g of benzoic acid dissolved in 100 mL of water was extracted with 100 mL of dichloromethane? Show calculations. b) Approximately how many grams of benzoic acid would be recovered if the water layer was extracted a...
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...
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
Question 12 1 pts Which of the following technique is primary used to purify organic compounds? Thin layer chromatography O Reflux Distillation Recrystallization O Liquid-liquid extraction
explain the following answers
4. (3 pts) If a dichloromethane solution of the following four compounds was extracted with an aqueous solution of K CO3, which compound(s) (in conjugate base form) would be extracted into the aqueous layer? SH SO, IV A) I and II B) I, II and III C) III and IV D) IV 6. (3 pts) If a dichloromethane solution of the following four compounds was extracted with a mixture that consists of water and NaH, which...
Name: Date: Separation of Acid/Base/Neutral compounds using liquid-liquid extraction OCH CHO HN Benzocaine Molecular Weight: 165.19 Melting Point: 88-90 °C 1,1-biphenyl Molecular Weight: 154.21 Melting Point: 68-70 °C trans-cinnamic acid Molecular Weight: 148.16 Melting Point: 132-135 °C Question 1: Identify the following compounds as Acid, Base or Neutral. (2 points) a. Benzocaine: b. Biphenyl: c. Trans-cinnamic acid: (2 points) _ (2 points) Question 2: Draw the structure in the box (5 points each): NaOH OCH,CH, HCM NaOHA HC form. Ples...
Acid/Base Extraction
1. Provide a flow chart detailing the acid/base
extraction/separation of the compounds shown below. Your answer
must employ the following reagents: methylene chloride,
hydrochloric acid (1M & 6M), sodium hydroxide (1M & 6M),
10% sodium bicarbonate (aq). Clearly indicate the product(s) and
layers formed following each step of your separation scheme.
IMPORTANT: p-cresol is soluble in sodium hydroxide solution but
insoluble in neutral water or sodium bicarbonate solution. 2-
ethylbenzoic acid is soluble in both sodium hydroxide and...
1)When you perform a liquid-liquid extraction using a separatory funnel, which of the following organic solvent is on the bottom of the aqueous phase and which is on top? (write your answer by the solvent name) a) Ethyl acetate b) hexane c) Dichloromethane d) diethyl ether 2) If you are performing a liquid-liquid extraction and you have a mix of a carboxylic acid and a non-acidic compound, which combination of solvents would you use for the separation? a) dichloromethane/HCI b)...
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