Homework Answers
Eugenol is slightly water soluble and highly soluble in organic solvent. Therefore, Eugenol will be soluble in ethyl acetate.
Napthalene is a bicyclic organic compound which does not contain any hydrophilic group and is soluble in organic solvent such as ethyl acetate.
Sodium acetate is a ionic compound consisting of sodium and acetate ions and therefore it is highly soluble in water.
Lithium chloride has sufficient covalent character because of greater polarisation. Therefore it is soluble in non polar solvents such as acetone as well as as polar solvent such as ethanol but insoluble in ethyl acetate. While it possess solubility in water as 68 g/100 ml of solution
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3. In a liquid-liquid extraction with water and ethyl acetate, which phase would you expect each...
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)...
1) during liquid liquid extraction ( LLE) it is normal to use separatory funnel, and two...
1) during liquid liquid extraction ( LLE) it is normal to use separatory funnel, and two non- miscible phases of solvents , for ex: water as polar phase and ethyl acetate is the organic phase. density of water is 1,0 g/ ml, while density of ethyl acetate is 0.90 g/ ml at 25.0 celsius degrees. which of the two solvents will end up at the buttom of the separatory funnel? 2) ) during liquid liquid extraction ( LLE) it is...
Would you expect the temperature range of the liquid phase of a 1.0m (molality) solution of...
Would you expect the temperature range of the liquid phase of a 1.0m (molality) solution of sodium chloride or magnesuim chlorideto be larger? Briefly explain your answer.
Assignment: CO2 extraction of Eugenol 1. Which one of the following two compounds would you expect to have a higher sol...
Assignment: CO2 extraction of Eugenol 1. Which one of the following two compounds would you expect to have a higher solubility in liquid CO2. Explain your reasoning in a few sentences: HO. HC I CH ON CH3 Capsaicin Caffeine 2. Explain why percent recovery is utilized in the CO2 extraction of Eugenol as opposed to a theoretical yield. Limit yourself to 1-3 sentences. H3CO 3. List 3 signals that should be observed in the IR spectrum of Eugenol (whose structure...
HW.4 & 5 Liquid-Liquid Extraction HW4. A student wishes to separate a mixture of the two...
HW.4 & 5
Liquid-Liquid Extraction HW4. A student wishes to separate a mixture of the two compounds shown below. They intend to use liquid-liquid extraction to do so. NH Aniline Naphthalene A) Aniline has an amine functionality and naphthalene is purely a hydrocarbon compound. An amine functional group is acidic, basic, or neutral? asic B) Given your answer to A, fill in the missing portions of the diagram that describe the process of the separation for aniline and naphthalene. Aqueous...
Acid/Base Extraction ACID/BASE EXTRACTION Provide a flow chart detailing the acid/base extraction/separation of the compounds shown...
Acid/Base Extraction
ACID/BASE EXTRACTION 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. HINT: phenol is soluble in sodium hydroxide solution but insoluble in neutral water or sodium bicarbonate solution. Benzoic acid is soluble in both sodium hydroxide and...
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...
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...
A liquid-liquid extraction is performed according to the schematic below. Which compound(s) should we expect to...
A liquid-liquid extraction is performed according to the schematic below. Which compound(s) should we expect to find in layer B? You can assume 100% of each compound is separated into its respective layer. benzoic acid diethyl ether biphenyl 5% NaOH (aq) Aqueous Organic Layer A 6 M HCl(aq) Aqueous Organic Layers C & D secondom i Vacuum Filtration Benzoic Acid
1. Which one of the following two compounds would you expect to have a higher solubility...
1. Which one of the following two compounds would you
expect to have a higher solubility in liquid CO2. Explain your
reasoning in a few sentences:
2. Explain why percent recovery is utilized in the CO2
extraction of Eugenol as opposed to a theoretical yield. Limit
yourself to 1-3 sentences.
3. List 3 signals that should be observed in the IR
spectrum of Eugenol (whose structure is shown to the right).
4. In your own words, explain the purpose of...
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)...
Assignment: CO2 extraction of Eugenol 1. Which one of the following two compounds would you expect to have a higher solubility in liquid CO2. Explain your reasoning in a few sentences: HO. HC I CH ON CH3 Capsaicin Caffeine 2. Explain why percent recovery is utilized in the CO2 extraction of Eugenol as opposed to a theoretical yield. Limit yourself to 1-3 sentences. H3CO 3. List 3 signals that should be observed in the IR spectrum of Eugenol (whose structure...
HW.4 & 5
Liquid-Liquid Extraction HW4. A student wishes to separate a mixture of the two compounds shown below. They intend to use liquid-liquid extraction to do so. NH Aniline Naphthalene A) Aniline has an amine functionality and naphthalene is purely a hydrocarbon compound. An amine functional group is acidic, basic, or neutral? asic B) Given your answer to A, fill in the missing portions of the diagram that describe the process of the separation for aniline and naphthalene. Aqueous...
Acid/Base Extraction
ACID/BASE EXTRACTION 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. HINT: phenol is soluble in sodium hydroxide solution but insoluble in neutral water or sodium bicarbonate solution. Benzoic acid is soluble in both sodium hydroxide and...
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...
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...
A liquid-liquid extraction is performed according to the schematic below. Which compound(s) should we expect to find in layer B? You can assume 100% of each compound is separated into its respective layer. benzoic acid diethyl ether biphenyl 5% NaOH (aq) Aqueous Organic Layer A 6 M HCl(aq) Aqueous Organic Layers C & D secondom i Vacuum Filtration Benzoic Acid
1. Which one of the following two compounds would you
expect to have a higher solubility in liquid CO2. Explain your
reasoning in a few sentences:
2. Explain why percent recovery is utilized in the CO2
extraction of Eugenol as opposed to a theoretical yield. Limit
yourself to 1-3 sentences.
3. List 3 signals that should be observed in the IR
spectrum of Eugenol (whose structure is shown to the right).
4. In your own words, explain the purpose of...
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