Among the mentioned above solvents choose the most polar solvent and write why you chosen this...
Among the mentioned above solvents choose the most polar solvent and write why you chosen this one: a) thyl acetate: b) hexane; c) chloroform; d) diethyl ether
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Among the mentioned above solvents choose the most polar solvent
and write why you chosen this...
5. For each of the following solvents, provide an unambiguous structural formula. Then classify each solvent as pro...
5. For each of the following solvents, provide an unambiguous structural formula. Then classify each solvent as protic, polar aprotic, or nonpolar. a. Ethanol b. Dimethylsulfoxide (DMSO) c. Hexamethylphosphoramide (HMPA) d. Benzene e. Heptane f. Acetic acid 9. Tetrahydrofuran (THF) h. Diethyl ether i Carbon tetrachloride j. Dichloromethane (DCM) k. Chloroform 1. Ethyl acetate
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)...
Which of the following solvents would potentially be suitable for extracting an organic compound from water?...
Which of the following solvents would potentially be suitable for extracting an organic compound from water? (You should be able to answer this question based on your general knowledge of organic solvents.) A. diethyl ether B. chloroform C. hexane D. ethanol E. acetone
(4pts) When you perform a liquid-liquid ext 17) which of the following organic solvent is on...
(4pts) When you perform a liquid-liquid ext 17) which of the following organic solvent is on the bottoming a extraction us which is on top? (write your answer by the solvent name p a) Ethyl acetate b) hexane c) Dichloromethane d) diethyl ether a liquid-liquid extraction and you have a 18) (3pts) If you are performing carboxylic acid and a non-acidic compound, which combinat you use for the separation? of solvents a) dichloromethane/HCI b) dichloromethane/methanol c) dicholoromethane/NaOH d) NaOH and...
questions 7. Why are polar protic solvents preferred for Syl reactions? A. Solvent ionizability B. Hydrogen...
questions 7. Why are polar protic solvents preferred for Syl reactions? A. Solvent ionizability B. Hydrogen bonding C.Heat Capacity D.Both A and B E.Both B and C ene chloride)? 8. Why is triflate (A) a better leaving group then tosylate (B) OSICF В A A. Atomic Size B. Resonance C. Hybridization D.Polarizability E. Inductive Effects E 9. Which compound is the stronger Base? A. Lithium Hydroxide B. Sodium Acetate C. Triethyl amine D. Potassium tert-butoxide E. Water 10. What is...
which is less dense and more dense. please write the explaination for a-d please Question 3:...
which is less dense and more dense.
please write the explaination for a-d please
Question 3: When immiscible organic solvent is mixed with water, two layers will form. Please identify which of the following solvents will be top or bottom layer when mix with water (density = 1 g/ml). (2 points each) a. Dichloromethane (density = 1.33 g/ml): Top or Bottom b. Chloroform (density = 1.49 g/ml): Top or Bottom c. Diethyl ether (density = 0.706 g/ml): Top or Bottom...
just circle the answer Why do you think polar aprotic solvents increase the rate of an...
just circle the answer
Why do you think polar aprotic solvents increase the rate of an SN2 reaction? a) Polar solvents dissolve the substrates most effectively, speeding up the reaction b) Aprotic solvents better solvate the leaving group and therefore accelerate the reaction c) Aprotic solvents solvate the nucleophile less, 'naked' nucleophiles are more reactive d) Aprotic solvents raise the enegy of the reagents and therefore accelerate the reaction
Identify the most productive reagent and solvent or combination/sequence of reagents and solvents needed to perform...
Identify the most productive reagent and solvent or combination/sequence of reagents and solvents needed to perform the indicated transformation, GAN Select one: a. HCN in acetone b. HCN in water c. NaCN in acetone d. NaCN in water
Huie Turva polar better with higher solvent stationary phase Study Problem: A mixture of organic compounds...
Huie Turva polar better with higher solvent stationary phase Study Problem: A mixture of organic compounds was analyzed by TLC using different solvent mixtures as mobile pha and the results are presented in the diagram below. Compare the TLC plates A-D with the one on the left and answer th questions: a) How is the polarity of the mobile phase used to TLC plate A comparative with plate on the left? b) How are the Ri's value on the plate...
Hi can someone help me with my pre lab theory questions (1,2,3) on rate of elution...
Hi can someone help me with my pre lab theory questions (1,2,3)
on rate of elution or Rf? Here is some background below. Please
help explain as many as possible (1-3)! I dont really get the
relation ships in this lab, thank you!
1. What factors affect the rate of elution in organic compounds? 2. Explain what is the relationship between polarities of compounds (polar/non- polar compound) and rate of elution (Rf). 3. Explain what is the relationship between solvent...
5. For each of the following solvents, provide an unambiguous structural formula. Then classify each solvent as protic, polar aprotic, or nonpolar. a. Ethanol b. Dimethylsulfoxide (DMSO) c. Hexamethylphosphoramide (HMPA) d. Benzene e. Heptane f. Acetic acid 9. Tetrahydrofuran (THF) h. Diethyl ether i Carbon tetrachloride j. Dichloromethane (DCM) k. Chloroform 1. Ethyl acetate
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)...
(4pts) When you perform a liquid-liquid ext 17) which of the following organic solvent is on the bottoming a extraction us which is on top? (write your answer by the solvent name p a) Ethyl acetate b) hexane c) Dichloromethane d) diethyl ether a liquid-liquid extraction and you have a 18) (3pts) If you are performing carboxylic acid and a non-acidic compound, which combinat you use for the separation? of solvents a) dichloromethane/HCI b) dichloromethane/methanol c) dicholoromethane/NaOH d) NaOH and...
questions 7. Why are polar protic solvents preferred for Syl reactions? A. Solvent ionizability B. Hydrogen bonding C.Heat Capacity D.Both A and B E.Both B and C ene chloride)? 8. Why is triflate (A) a better leaving group then tosylate (B) OSICF В A A. Atomic Size B. Resonance C. Hybridization D.Polarizability E. Inductive Effects E 9. Which compound is the stronger Base? A. Lithium Hydroxide B. Sodium Acetate C. Triethyl amine D. Potassium tert-butoxide E. Water 10. What is...
which is less dense and more dense.
please write the explaination for a-d please
Question 3: When immiscible organic solvent is mixed with water, two layers will form. Please identify which of the following solvents will be top or bottom layer when mix with water (density = 1 g/ml). (2 points each) a. Dichloromethane (density = 1.33 g/ml): Top or Bottom b. Chloroform (density = 1.49 g/ml): Top or Bottom c. Diethyl ether (density = 0.706 g/ml): Top or Bottom...
just circle the answer
Why do you think polar aprotic solvents increase the rate of an SN2 reaction? a) Polar solvents dissolve the substrates most effectively, speeding up the reaction b) Aprotic solvents better solvate the leaving group and therefore accelerate the reaction c) Aprotic solvents solvate the nucleophile less, 'naked' nucleophiles are more reactive d) Aprotic solvents raise the enegy of the reagents and therefore accelerate the reaction
Identify the most productive reagent and solvent or combination/sequence of reagents and solvents needed to perform the indicated transformation, GAN Select one: a. HCN in acetone b. HCN in water c. NaCN in acetone d. NaCN in water
Huie Turva polar better with higher solvent stationary phase Study Problem: A mixture of organic compounds was analyzed by TLC using different solvent mixtures as mobile pha and the results are presented in the diagram below. Compare the TLC plates A-D with the one on the left and answer th questions: a) How is the polarity of the mobile phase used to TLC plate A comparative with plate on the left? b) How are the Ri's value on the plate...
Hi can someone help me with my pre lab theory questions (1,2,3)
on rate of elution or Rf? Here is some background below. Please
help explain as many as possible (1-3)! I dont really get the
relation ships in this lab, thank you!
1. What factors affect the rate of elution in organic compounds? 2. Explain what is the relationship between polarities of compounds (polar/non- polar compound) and rate of elution (Rf). 3. Explain what is the relationship between solvent...
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