In Fischer Esterification utilizing Microwave-Assisted Organic Compound, why is it important to use round-bottom flask filled...
In Fischer Esterification utilizing Microwave-Assisted Organic Compound, why is it important to use round-bottom flask filled with ice?
Homework Answers
This round bottom flask shape is more resistant to fracturing under vacuum, as a sphere more evenly distributes stress across its surface. Round-bottom flasks are often used to contain chemical reactions such fisher fisher esterification reactions run by chemists, especially for reflux set-ups and laboratory-scale synthesis.The interaction of salt and ice somehow causes a temperature rise which causes melting of ice maintaing the reaction conditions which are required for reaction to take place.
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In Fischer Esterification utilizing Microwave-Assisted Organic
Compound, why is it important to use round-bottom flask filled...
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....
In the boxes provided, draw the structures of the four intermediates and the organic product when the following compound is reacted with methanol in the presence of acid in a Fischer esterification reaction. You don’t have to show the important resonance
In the boxes provided, draw the structures of the four intermediates and the organic product when the following compound is reacted with methanol in the presence of acid in a Fischer esterification reaction. You don’t have to show the important resonancestructures.I need to see the mechanism to get the answers.
5.0 ml of 2-methylcyclohexanol was placed in a 50 ml round bottom flask. Phosphoric acid (85%,...
5.0 ml of 2-methylcyclohexanol was placed in a 50 ml round bottom flask. Phosphoric acid (85%, 5 ml) was added cautiously, and the mixture swirled. Boiling stones were added to prevent bumping during heating. The mixture was heated to reflux temperature and refluxed for 15 minutes. The products were collected between 85-90 ˚C, in a small round bottom flask, cooled in ice water. Isolation Procedure The distillate was washed with 2 x 5 ml saturated sodium chloride solution in a...
PREPARATION OF PHARMACEUTICALS - Fischer Esterification Reactions Q: Calculate the expected mass of both methyl salicylate and aspirin assuming 100% yield. EXPERIMENT7 PREPARATION OF PHARMACEUTICALS...
PREPARATION OF PHARMACEUTICALS - Fischer Esterification
Reactions
Q: Calculate the expected mass of both methyl salicylate and
aspirin assuming 100% yield.
EXPERIMENT7 PREPARATION OF PHARMACEUTICALS Fischer Esterification Reactions Almost 2500 years ago, physicians such as Hippocrates recommended that patients chew on the bark of the willow to alleviate pain. The active ingredient in willow bark was found to be salicin, a compound made of a molecule of salicyl alcohol bonded to a p-D-glucose molecule. In the stomach, the bond between...
Organic chemistry post-lab question: "Why is important to add the alkyl halide dropwise in your reaction?...
Organic chemistry post-lab question: "Why is important
to add the alkyl halide dropwise in your reaction? (Hint: your
reaction is not heated, but you still need a water-cooled
condenser!)" Please answer in detail!
Here is a copy of the experiment, thank you!
The Grignard reaction is an important synthetic process by which a carbon-carbon bond is formed. Magnesium metal is first reacted with an organic halide. The resultant organo-magnesium halide (Grignard reagent) is then combined with a carbonyl compound, ultimately...
Introduction: The technique used to separate an organic compound from a mixture of compounds is called...
Introduction: The technique used to separate an organic compound from a mixture of compounds is called Extraction. Extraction process selectively dissolves one or more of the mixture compounds into a suitable solvent. The solution of these dissolved compounds is referred to as the Extract. Here the organic solvent dichloromethane is used to extract caffeine from an aqueous extract of tea leaves because caffeine is more soluble in dichloromethane (140 mg/ml) than it is in water (22 mg/ml). However, there are...
Help with PreLab questions 1-4 Procedure Esterification Each group will be assigned an unknown alcohol by...
Help with PreLab questions 1-4
Procedure Esterification Each group will be assigned an unknown alcohol by the instructor. Record the unknown number and then add the contents of the vial (25 mmol of alcohol) to a 50 mL round bottom flask with a stir bar Then add 2.75 mL (approx. 50 mmol) of acetic acid followed by 0.25 mL of concentrated sulfuric acid Add a reflux condenser then reflux the mixture in a sand bath with stirring for one hour....
weight of cylinder 10.48g weight of cylinder with of isopentyl alcohol 14.55g weight of collecting flask...
weight of cylinder 10.48g
weight of cylinder with of isopentyl alcohol 14.55g
weight of collecting flask 56.77 g
weight of collecting flask with product 60.42g
I need help getting theoretical yield and % yield.
Experiment 12 Isopentyl Acetate (Banana Oil) 93 Rasmussen, P. W. Qualitative Analysis by Gas Chromatography-G.C. versus the Nose in Formu- lation of Artificial Fruit Flavors." Journal of Chemical Education, 61 (January 1984): 62. Shreve, R. N., and Brink, J. Chemical Process Industries, 4th ed. New York:...
____ What was the purpose of hydrogen peroxide and why was it added slowly with cooling?...
____ What was the purpose of hydrogen peroxide and why was it
added slowly with cooling?
HYDROBORATION-OXIDATION OF 1-HEXENE 1. In a screw cap V-vial, prepare a solution of 0.33 g of iodine in 3 mL of dry THF. Firmly tighten the cap; keep the vial closed until ready to use. 2. In a 25 mL round-bottom flask, weigh 0.12 g of sodium borohydride. Add 8 mL of dry THF; stopper the flask with a septum, and stir the mixture...
Construct a flow chart describing the seperation of the mixture and the isolation of each compound...
Construct a flow chart describing the seperation of the
mixture and the isolation of each compound in this experiment. (Lab
steps/procedures includes for reference)
4. Construct a flow chart describing the separation of the mixture and the isolation of each compound in this experiment. A commonly used method of separating a mixture of organic compounds is known as liquid-liquid extraction. Most reactions of organic compounds require extraction at some stage of product purification. In this experiment you will use extraction...
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....
In the boxes provided, draw the structures of the four intermediates and the organic product when the following compound is reacted with methanol in the presence of acid in a Fischer esterification reaction. You don’t have to show the important resonancestructures.I need to see the mechanism to get the answers.
PREPARATION OF PHARMACEUTICALS - Fischer Esterification
Reactions
Q: Calculate the expected mass of both methyl salicylate and
aspirin assuming 100% yield.
EXPERIMENT7 PREPARATION OF PHARMACEUTICALS Fischer Esterification Reactions Almost 2500 years ago, physicians such as Hippocrates recommended that patients chew on the bark of the willow to alleviate pain. The active ingredient in willow bark was found to be salicin, a compound made of a molecule of salicyl alcohol bonded to a p-D-glucose molecule. In the stomach, the bond between...
Organic chemistry post-lab question: "Why is important
to add the alkyl halide dropwise in your reaction? (Hint: your
reaction is not heated, but you still need a water-cooled
condenser!)" Please answer in detail!
Here is a copy of the experiment, thank you!
The Grignard reaction is an important synthetic process by which a carbon-carbon bond is formed. Magnesium metal is first reacted with an organic halide. The resultant organo-magnesium halide (Grignard reagent) is then combined with a carbonyl compound, ultimately...
Help with PreLab questions 1-4
Procedure Esterification Each group will be assigned an unknown alcohol by the instructor. Record the unknown number and then add the contents of the vial (25 mmol of alcohol) to a 50 mL round bottom flask with a stir bar Then add 2.75 mL (approx. 50 mmol) of acetic acid followed by 0.25 mL of concentrated sulfuric acid Add a reflux condenser then reflux the mixture in a sand bath with stirring for one hour....
weight of cylinder 10.48g
weight of cylinder with of isopentyl alcohol 14.55g
weight of collecting flask 56.77 g
weight of collecting flask with product 60.42g
I need help getting theoretical yield and % yield.
Experiment 12 Isopentyl Acetate (Banana Oil) 93 Rasmussen, P. W. Qualitative Analysis by Gas Chromatography-G.C. versus the Nose in Formu- lation of Artificial Fruit Flavors." Journal of Chemical Education, 61 (January 1984): 62. Shreve, R. N., and Brink, J. Chemical Process Industries, 4th ed. New York:...
____ What was the purpose of hydrogen peroxide and why was it
added slowly with cooling?
HYDROBORATION-OXIDATION OF 1-HEXENE 1. In a screw cap V-vial, prepare a solution of 0.33 g of iodine in 3 mL of dry THF. Firmly tighten the cap; keep the vial closed until ready to use. 2. In a 25 mL round-bottom flask, weigh 0.12 g of sodium borohydride. Add 8 mL of dry THF; stopper the flask with a septum, and stir the mixture...
Construct a flow chart describing the seperation of the
mixture and the isolation of each compound in this experiment. (Lab
steps/procedures includes for reference)
4. Construct a flow chart describing the separation of the mixture and the isolation of each compound in this experiment. A commonly used method of separating a mixture of organic compounds is known as liquid-liquid extraction. Most reactions of organic compounds require extraction at some stage of product purification. In this experiment you will use extraction...
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