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Questions 1. Suppose that you are performing an extract solvent that has a density less than...
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...
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)...
Pre-laboratory Questions 1. Although it is a less efficient solvent for this extraction, why is 2-propanol...
Pre-laboratory Questions 1. Although it is a less efficient solvent for this extraction, why is 2-propanol used in this extraction rather than chloroform or methylene chloride? 2. What is the purpose of adding sodium carbonate to the aqueous solution? Be the concentration of sodium carbonate incest, it undergoes hydolysis to form sodun hydroride 3. Why it is necessary to add sodium chloride to the water before the caffeine is extracted with 2-propanol?
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...
Based on solubility, density, and polarity information what will happen if a caffeine extraction and sublimation...
Based on solubility, density, and polarity information what will happen if a caffeine extraction and sublimation experiment is carried out at 100°C? (Note: show the outline, the experiment might not work perfectly in the actual lab, but a hypothetical outline is needed). Procedure below: Boil 20mL DI water. Place 1st tea bag in beaker taken off heat and cool to handling temperature. Squeeze tea from bag without breaking it. Boil the mixture. Repeat steps with 2nd teabag. Cool to room...
Provide a flow chart detailing the acid/base extraction/separation of the compounds show below. Your answer must...
Provide a flow chart detailing the acid/base extraction/separation of the compounds show 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 sodium bicarbonate solutions. Use...
Part B Questions 1) Put the letter of the correct answer for each of the following questions in the box to the right 10...
Part B Questions 1) Put the letter of the correct answer for each of the following questions in the box to the right 10 points a. For a mixture of pure hexane and pure dimethylformamide, the dimethylformamide layer will be found as: (A) the top layer (B) the bottom layer (C) neither; the two (D) cannot determine solvents are miscible b. To extract aniline (CeH5NH2) from a solution of chloroform, one would use: (D) either B or C would work...
Part B - Questions 1) Put the letter of the correct answer for each of the...
Part B - Questions 1) Put the letter of the correct answer for each of the following questions in the box to the right. 10 points a. For a mixture of pure hexane and pure dimethylformamide, the dimethylformamide layer will be found as: (A) the top layer (B) the bottom layer (C) neither; the two (D) cannot determine solvents are miscible b. To extract aniline (C&H5NH2) from a solution of chloroform, one would use: (A) aqueous HCI (B) aqueous NaOH...
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...
Question 1 p Flag question Not yet answered Marked out of 1 What is an extraction?...
Question 1 p Flag question Not yet answered Marked out of 1 What is an extraction? Select one: a. Separation of compounds in a mixture based on their solubility in miscible solvents. b. Separation of compounds in a mixture based on their solubility in immiscible solvents. Question 2 Not yet answered Marked out oft Flag question In a liquid-liquid extraction the compound (or solute) prefers to be dissolved in one liquid versus the other liquid. Select one: True False Question...
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...
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)...
Pre-laboratory Questions 1. Although it is a less efficient solvent for this extraction, why is 2-propanol used in this extraction rather than chloroform or methylene chloride? 2. What is the purpose of adding sodium carbonate to the aqueous solution? Be the concentration of sodium carbonate incest, it undergoes hydolysis to form sodun hydroride 3. Why it is necessary to add sodium chloride to the water before the caffeine is extracted with 2-propanol?
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...
Provide a flow chart detailing the acid/base extraction/separation of the compounds show 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 sodium bicarbonate solutions. Use...
Part B Questions 1) Put the letter of the correct answer for each of the following questions in the box to the right 10 points a. For a mixture of pure hexane and pure dimethylformamide, the dimethylformamide layer will be found as: (A) the top layer (B) the bottom layer (C) neither; the two (D) cannot determine solvents are miscible b. To extract aniline (CeH5NH2) from a solution of chloroform, one would use: (D) either B or C would work...
Part B - Questions 1) Put the letter of the correct answer for each of the following questions in the box to the right. 10 points a. For a mixture of pure hexane and pure dimethylformamide, the dimethylformamide layer will be found as: (A) the top layer (B) the bottom layer (C) neither; the two (D) cannot determine solvents are miscible b. To extract aniline (C&H5NH2) from a solution of chloroform, one would use: (A) aqueous HCI (B) aqueous NaOH...
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...
Question 1 p Flag question Not yet answered Marked out of 1 What is an extraction? Select one: a. Separation of compounds in a mixture based on their solubility in miscible solvents. b. Separation of compounds in a mixture based on their solubility in immiscible solvents. Question 2 Not yet answered Marked out oft Flag question In a liquid-liquid extraction the compound (or solute) prefers to be dissolved in one liquid versus the other liquid. Select one: True False Question...
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