Question 2: Why is the CH2Cl2 layer the bottom layer in a CH2Cl2 / aqueous NaHCO3 extraction? In this experiment, what does the CH2Cl2 layer contain? What does the aqueous NaHCO3 layer contain?
Question 2 of Prelab questions
Why is the CH2Cl2 layer the bottom layer in a CH2Cl2 / aqueous NaHCO3 extraction? In this experiment, what does the CH2Cl2 layer contain? What does the aqueous NaHCO3 layer contain?
Homework Answers
2) CH2Cl2 density is more compare with water and aqous NaHCO3 solution so it will come under bottom layer. aqueous NaHCO3 solution contain NaHCO3
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Question 2: Why is the CH2Cl2 layer the bottom layer in a CH2Cl2 / aqueous NaHCO3 extraction? In this experiment, what does the CH2Cl2 layer contain? What does the aqueous NaHCO3 layer contain?
Explain in a few sentences how extraction can be used to separate an organic compound from sodium chloride.
06 Lab 3a Separation.pdfQuestion 1 of prelabExplain in a few sentences how extraction can be used to separate an organic compound from sodium chloride.
Prelab
1. Explain in a few sentences how extraction can be used to separate an organic compound from
sodium chloride.
2. Why is the CH2Cl2 layer the bottom layer in a CH2Cl2 / aqueous NaHCO3 extraction? In this
experiment, what does the CH2Cl2 layer contain? What does the aqueous NaHCO3 layer
contain?
3. In general, how...
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
experiment-2-coffeine-extraction-l.pdf
Introduction: Pre-lab Questions Turn in typed responses in the beginning of lab. Answer in complete sentences. Show your work in pen where applicable. 1. What other compounds are extracted along with caffeine into the tea? Use what you know about the relative polarity of the functional groups within these compounds to determine the final destination of the following compounds: cellulose, tannins, chlorophylls, sodium carbonate. Do the majority of these compounds end up in the tea bag, filtered solid, aqueous layer,...
lab: separation of benzoic acid and napthalene extraction what compound ends up in the aqueous layer...
lab: separation of benzoic acid and napthalene extraction what compound ends up in the aqueous layer and in the organic layer? EXPLAIN
Just Answer Question 5 Synthesis of 2-chloro-2-methylbutane (literature version) Concentrated aqueous hydrochloric acid (HCI, 3.3 equivalents)...
Just Answer Question 5
Synthesis of 2-chloro-2-methylbutane (literature version) Concentrated aqueous hydrochloric acid (HCI, 3.3 equivalents) was slowly added to 2-methyl-2-butanol (1.0 equivalents) in a 100 mL round bottom flask with stirring. The reaction was stirred for 15 minutes at room temperature. Upon completion, the reaction mixture was transferred to a 60 mL separatory funnel and the aqueous layer was removed. The organic layer (i.e. the product) was successively washed with: (1) saturated aqueous NaCl (brine), (2) saturated aqueous NaHCO,...
1. Preparation of 2-chloro-2-methylbutane from 2-methyl-2-butanol involves Sw1 reaction mechanism. What does Sw1 mean? (1 pts)...
1. Preparation of 2-chloro-2-methylbutane from 2-methyl-2-butanol involves Sw1 reaction mechanism. What does Sw1 mean? (1 pts) 2. This reaction prefers to undergo via Sw1 mechanism over Sw2. Why? (3 pts) 3. Write the structure of carbocation and nucleophile involved in this reaction. (2 pts) 4. Substrate alcohol (2-methyl-2-butanol) consists a poor leaving group (OH group). How do you covert this poor leaving group into good leaving group? (2 pts) 5. Which will be the bottom layer between aqueous and organic...
Name Date 5) What is the first step in the DNA extraction process? 6) What cells...
Name Date 5) What is the first step in the DNA extraction process? 6) What cells are used in DNA extraction? 7) Ust the four steps used to purify the DNA: a. b. d. What is the purpose of this and 8) What does the term "Lysis" mean? solution? What two chemicals does it contain? 9) What does the detergent do to the cell? What does the proteinese K do? 10) What do you think the purpose of the warm...
Post lab question 1. What can you do if you do not know which layer is...
Post lab question 1. What can you do if you do not know which layer is which in an extraction procedure? 2. Consider the densities of the following pairs of liquids. Which liquid would you expect (which is the organic layer and which is the aqueous layer? to be on top and which will be on the bottom? Do all the liquids form two layers? a. Hexane and water b. Ethanol and water c. Dichloromethane and water d. Ethyl acetate...
43 Exp 6: Liquid-Liquid Extraction Week 2 Objective The purpose of this experiment is to apply...
43 Exp 6: Liquid-Liquid Extraction Week 2 Objective The purpose of this experiment is to apply what you've leaned about liquid/liquid separations to the analysis of a simulated mixture of Methylenedioxypyrovalerone (MDPV, aka 'Bath Salts') and an unknown cutting agent. Your goal is to separate the cutting agent from the drug. You will also need to test the compound purities. Acid/base extraction is one of the more difficult principles in organic chemistry to understand. The most straight-forward approach to understanding...
Thumbs up for good answer. Why does the liquid in the round bottom flask turn light...
Thumbs up for good answer. Why does the liquid in the round
bottom flask turn light pink?, please explain (This happened
during/after step 2). This is the procedure and the experiment is
called Synthesis of Artificial Flavorings by Fischer
Esterification.
Thank you!
SAMPLE PROCEDURES: 1. Isoanvl acetate (banana) + H2O OH HO 1. Mix 6 mL of isoamyl alcohol (0.809 g/mL, 88.148 g/mol) and 10 ml ofglacial acetic acid (1.05 g/ml 60.05 g/mol) in a 100 mL round bottom flask....
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
Just Answer Question 5
Synthesis of 2-chloro-2-methylbutane (literature version) Concentrated aqueous hydrochloric acid (HCI, 3.3 equivalents) was slowly added to 2-methyl-2-butanol (1.0 equivalents) in a 100 mL round bottom flask with stirring. The reaction was stirred for 15 minutes at room temperature. Upon completion, the reaction mixture was transferred to a 60 mL separatory funnel and the aqueous layer was removed. The organic layer (i.e. the product) was successively washed with: (1) saturated aqueous NaCl (brine), (2) saturated aqueous NaHCO,...
1. Preparation of 2-chloro-2-methylbutane from 2-methyl-2-butanol involves Sw1 reaction mechanism. What does Sw1 mean? (1 pts) 2. This reaction prefers to undergo via Sw1 mechanism over Sw2. Why? (3 pts) 3. Write the structure of carbocation and nucleophile involved in this reaction. (2 pts) 4. Substrate alcohol (2-methyl-2-butanol) consists a poor leaving group (OH group). How do you covert this poor leaving group into good leaving group? (2 pts) 5. Which will be the bottom layer between aqueous and organic...
Name Date 5) What is the first step in the DNA extraction process? 6) What cells are used in DNA extraction? 7) Ust the four steps used to purify the DNA: a. b. d. What is the purpose of this and 8) What does the term "Lysis" mean? solution? What two chemicals does it contain? 9) What does the detergent do to the cell? What does the proteinese K do? 10) What do you think the purpose of the warm...
Post lab question 1. What can you do if you do not know which layer is which in an extraction procedure? 2. Consider the densities of the following pairs of liquids. Which liquid would you expect (which is the organic layer and which is the aqueous layer? to be on top and which will be on the bottom? Do all the liquids form two layers? a. Hexane and water b. Ethanol and water c. Dichloromethane and water d. Ethyl acetate...
43 Exp 6: Liquid-Liquid Extraction Week 2 Objective The purpose of this experiment is to apply what you've leaned about liquid/liquid separations to the analysis of a simulated mixture of Methylenedioxypyrovalerone (MDPV, aka 'Bath Salts') and an unknown cutting agent. Your goal is to separate the cutting agent from the drug. You will also need to test the compound purities. Acid/base extraction is one of the more difficult principles in organic chemistry to understand. The most straight-forward approach to understanding...
Thumbs up for good answer. Why does the liquid in the round
bottom flask turn light pink?, please explain (This happened
during/after step 2). This is the procedure and the experiment is
called Synthesis of Artificial Flavorings by Fischer
Esterification.
Thank you!
SAMPLE PROCEDURES: 1. Isoanvl acetate (banana) + H2O OH HO 1. Mix 6 mL of isoamyl alcohol (0.809 g/mL, 88.148 g/mol) and 10 ml ofglacial acetic acid (1.05 g/ml 60.05 g/mol) in a 100 mL round bottom flask....
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