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alerlahre 6. Esters react with...
QUESTION REVIEW Question 6 Status: Not yet answered I Points possible: 1.00 Aspirin synthesis involves the...
QUESTION REVIEW Question 6 Status: Not yet answered I Points possible: 1.00 Aspirin synthesis involves the addition of an acetyl group to salicylic acid in a condensation reaction with an alcohol. The acety group could be added with a carboxylic acid but the preferred procedure is to use the acid anhydride. Why is preferable to use an acid anhydride for ester formation with an alcohol rather than a carboxylic acid? Select one: ОО Acid anhydrides are less stable than esters...
need help with 7and8 dont know how to do Propylene oxide (2-methyloxirane or 1,2-epoxypropane) can be...
need help with 7and8 dont know how to do
Propylene oxide (2-methyloxirane or 1,2-epoxypropane) can be converted to 1,2-propanediol by the 7. action of either dilute acid or base in water. When optically active (R)-(+)-propylene oxide is used, the 1,2-propanediol obtained from the acid hydrolysis (HsO) has an optical rotation opposite from the alkaline hydrolysis (OH, H20). Write the stepwise mechanism of each hydrolysis that is likely to explain these facts. Use curved arrows to show the flow of electrons....
Identify the compound with the higher boiling point in each of the following pairs of compounds:...
Identify the compound with the higher boiling point in each of the following pairs of compounds: 1. CH2-CH2-OH or H--C--0--CHz OH 2. CHz---0-CH3 or CH3-CH-CH2-CH3 0 2, CH, -- pH 3. CHz--2-0-CH, or CH3-CH2-CH2-CH2-CH3 Write the products of hydrolysis or saponification for the following esters. н" 1. CH3-CH-CH2--0--0--CH3 + H2O O 2, CH4-C-0-CH + NaOH 3. O -8-6-CH2-CH; -CH ---CH3 + KOH — -0--CH-CH2-CH3 + H20 - Properties of Esters sters shave higher boiling points than alkanes but lower than...
Combinatorial Chemistry: Ester Synthesis In today's lab, you will perform small scale Fischer esterifications to make...
Combinatorial Chemistry: Ester Synthesis In today's lab, you will perform small scale Fischer esterifications to make a variety of esters. H2SO4 R OH + R'OH = ROR Combinatorial chemistry is a term used to describe small scale reactions, where in a large number of different molecules can be made using the same reaction conditions, by varying the reactants. In the case of Fischer esterifications, one can vary the carboxylic acid and keep the alcohol constant or keep the carboxylic acid...
Fundamentals of Organic Chemistry Lab Can you use melting point as a method of analysis for your ester? Explain wh...
Fundamentals of Organic Chemistry Lab Can you use melting point as a method of analysis for your ester? Explain why. 3. 4. What is the proper way to smell the esters you synthesize? 5. If you heat the reaction mixture after adding water, what will happen? Combinatorial Chemistry: Ester Synthesis In today's lab, you will perform small scale Fischer esterifications to make a variety of esters. H2SO4 +R'OH Он OR R R Combinatorial chemistry is a term used to describe...
Ester Synthesis In today's lab, you will perform small scale Fischer esterifications to make a variety...
Ester Synthesis In today's lab, you will perform small scale Fischer esterifications to make a variety of esters. H2SO4 R OH + R'OH = ROR' Combinatorial chemistry is a term used to describe small scale reactions, where in a large number of different molecules can be made using the same reaction conditions, by varying the reactants. In the case of Fischer esterifications, one can vary the carboxylic acid and keep the alcohol constant or keep the carboxylic acid constant and...
PLEASE HELP ME WITH THIS PROBLEM. I DONT KNOW HOW TO DO THIS. THANK YOU :))...
PLEASE HELP ME WITH THIS PROBLEM. I DONT KNOW HOW TO DO THIS.
THANK YOU :))
Question 18 (4 points) A 5.0-kg cylinder of solid iron is supported by a string while submerged in water. The density of iron is 7750 kg/m3 and that of water is 1000 kg/m3 a) What is the buoyant force on the cylinder? (2 pts) b) What is the tension in the string? (2 pts)
please answer ALL. select all answers that apply. will give a thumbs up rating. thank you!...
please answer ALL. select all answers that apply. will give a
thumbs up rating. thank you!
Which of the following molecules can be oxidized to a carboxylic acid with Na2Cr2O7 in aqueous H2SO4? Select all that apply. ОН ОН Н Loh А B с D E D ОА DE B Ос Which of the following substituted benzene rings is more activated towards electrophilic aromatic substitution than benzene? Select all that apply. CF3 Br NH2 OH B с E F B...
Can someone help me, I dont know how to approach this question. Thank you so much....
Can someone help me, I dont know how to approach this
question. Thank you so much.
In a thermochemistry experiment the reaction of 0.0857 g of an unknown metal and an excess of 4.0 M HCl resulted in a 0.210 mL decrease in the volume of an ice/water mixture in an ice calorimeter. Calculate the enthalpy of this reaction per 1 g of metal reacted. Needed data: density of water at 273 K = 1.00 g/ml density of ice at...
Can someone please help me interpret the IR spectra of the reaction between isoamyl alcohol via...
Can
someone please help me interpret the IR spectra of the reaction
between isoamyl alcohol via Fischer esterification.
esta product 125 120 115 110 105 100 95 90 85 55 50 45 40 35 30 20 15 500 1000 2500 2000 1500 3000 3500 4000 Wavenumbers (cm-1) %Transmittance 8 R2 % 8 2958.38 2872.32 1739.58 1654.60 1648.01 1560.10 1541.78 1466.31 1508.05 1387.76 1366.35 1227 89 1171.12 1055.35 60196 818.27 2 General Reaction: R'-OH он H,0 H, heat OR Reaction Mechanism:...
QUESTION REVIEW Question 6 Status: Not yet answered I Points possible: 1.00 Aspirin synthesis involves the addition of an acetyl group to salicylic acid in a condensation reaction with an alcohol. The acety group could be added with a carboxylic acid but the preferred procedure is to use the acid anhydride. Why is preferable to use an acid anhydride for ester formation with an alcohol rather than a carboxylic acid? Select one: ОО Acid anhydrides are less stable than esters...
need help with 7and8 dont know how to do
Propylene oxide (2-methyloxirane or 1,2-epoxypropane) can be converted to 1,2-propanediol by the 7. action of either dilute acid or base in water. When optically active (R)-(+)-propylene oxide is used, the 1,2-propanediol obtained from the acid hydrolysis (HsO) has an optical rotation opposite from the alkaline hydrolysis (OH, H20). Write the stepwise mechanism of each hydrolysis that is likely to explain these facts. Use curved arrows to show the flow of electrons....
Identify the compound with the higher boiling point in each of the following pairs of compounds: 1. CH2-CH2-OH or H--C--0--CHz OH 2. CHz---0-CH3 or CH3-CH-CH2-CH3 0 2, CH, -- pH 3. CHz--2-0-CH, or CH3-CH2-CH2-CH2-CH3 Write the products of hydrolysis or saponification for the following esters. н" 1. CH3-CH-CH2--0--0--CH3 + H2O O 2, CH4-C-0-CH + NaOH 3. O -8-6-CH2-CH; -CH ---CH3 + KOH — -0--CH-CH2-CH3 + H20 - Properties of Esters sters shave higher boiling points than alkanes but lower than...
Combinatorial Chemistry: Ester Synthesis In today's lab, you will perform small scale Fischer esterifications to make a variety of esters. H2SO4 R OH + R'OH = ROR Combinatorial chemistry is a term used to describe small scale reactions, where in a large number of different molecules can be made using the same reaction conditions, by varying the reactants. In the case of Fischer esterifications, one can vary the carboxylic acid and keep the alcohol constant or keep the carboxylic acid...
Fundamentals of Organic Chemistry Lab Can you use melting point as a method of analysis for your ester? Explain why. 3. 4. What is the proper way to smell the esters you synthesize? 5. If you heat the reaction mixture after adding water, what will happen? Combinatorial Chemistry: Ester Synthesis In today's lab, you will perform small scale Fischer esterifications to make a variety of esters. H2SO4 +R'OH Он OR R R Combinatorial chemistry is a term used to describe...
Ester Synthesis In today's lab, you will perform small scale Fischer esterifications to make a variety of esters. H2SO4 R OH + R'OH = ROR' Combinatorial chemistry is a term used to describe small scale reactions, where in a large number of different molecules can be made using the same reaction conditions, by varying the reactants. In the case of Fischer esterifications, one can vary the carboxylic acid and keep the alcohol constant or keep the carboxylic acid constant and...
PLEASE HELP ME WITH THIS PROBLEM. I DONT KNOW HOW TO DO THIS.
THANK YOU :))
Question 18 (4 points) A 5.0-kg cylinder of solid iron is supported by a string while submerged in water. The density of iron is 7750 kg/m3 and that of water is 1000 kg/m3 a) What is the buoyant force on the cylinder? (2 pts) b) What is the tension in the string? (2 pts)
please answer ALL. select all answers that apply. will give a
thumbs up rating. thank you!
Which of the following molecules can be oxidized to a carboxylic acid with Na2Cr2O7 in aqueous H2SO4? Select all that apply. ОН ОН Н Loh А B с D E D ОА DE B Ос Which of the following substituted benzene rings is more activated towards electrophilic aromatic substitution than benzene? Select all that apply. CF3 Br NH2 OH B с E F B...
Can someone help me, I dont know how to approach this
question. Thank you so much.
In a thermochemistry experiment the reaction of 0.0857 g of an unknown metal and an excess of 4.0 M HCl resulted in a 0.210 mL decrease in the volume of an ice/water mixture in an ice calorimeter. Calculate the enthalpy of this reaction per 1 g of metal reacted. Needed data: density of water at 273 K = 1.00 g/ml density of ice at...
Can
someone please help me interpret the IR spectra of the reaction
between isoamyl alcohol via Fischer esterification.
esta product 125 120 115 110 105 100 95 90 85 55 50 45 40 35 30 20 15 500 1000 2500 2000 1500 3000 3500 4000 Wavenumbers (cm-1) %Transmittance 8 R2 % 8 2958.38 2872.32 1739.58 1654.60 1648.01 1560.10 1541.78 1466.31 1508.05 1387.76 1366.35 1227 89 1171.12 1055.35 60196 818.27 2 General Reaction: R'-OH он H,0 H, heat OR Reaction Mechanism:...
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