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13. A solution of naphthalene, aniline, and benzoic acid in CH;Cl2 is treated with aqueous NaOH....
Question 8 Status: Incomplete answer Points possible: 1.00 When separating benzoic acid, naphthalene, and aniline, identify...
Question 8 Status: Incomplete answer Points possible: 1.00 When separating benzoic acid, naphthalene, and aniline, identify the solution used for each described purpose. Extract aniline into the aqueous layer Choose... Extract reconstituted benzoic acid out of the aqueous layer Choose... Choose... Choose... Reconstitute benzoic acid from aqueous layer Reconstitute aniline from aqueous layer Extract benzoic acid into the aqueous layer Extract reconstituted aniline out of the aqueous layer Please answer all parts of the question. Choose... Choose...
Given: 50mL of solution diethyl ether solution containing 1.00g each of benzoic acid, phenol and aniline,50 mL of sodium...
Given: 50mL of solution diethyl ether solution containing 1.00g each of benzoic acid, phenol and aniline,50 mL of sodium bicarbonate solution, 50 ml of sodium hydroxide solution, sodium sulfate and HCl. 1. Which layer in the separatory funnel (top or bottom layer) is the organic layer during an extraction process? 2. Given that sodium bicarbonate and sodium hydroxide solution are 5% by weight, what would be the volume of 1M HCl needed to be added for acidification to crystalize the...
Options for each question: 6 M HCL, 5% HCL solution, Dichloromethane, 6 M NaOH, 5% NaOH...
Options for each question: 6 M
HCL, 5% HCL solution, Dichloromethane, 6 M NaOH, 5% NaOH
solution
Question 8 Status: Not yet answered Points possible: 1.00 When separating benzoic acid, naphthalene, and aniline, identify the solution used for each described purpose. Reconstitute benzoic acid from aqueous layer Choose... Extract benzoic acid into the aqueous layer Choose... Reconstitute aniline from aqueous layer Choose.. Extract aniline into the aqueous layer Choose... Extract reconstituted benzoic acid out of the aqueous layer Choose... Extract...
. Which of the following statements is not true regarding benzoic acid acids? a. The neutral...
. Which of the following statements is not true regarding benzoic acid acids? a. The neutral acid is the predominant species in aqueous solution at pH <2. b. The anionic carboxylate is the predominant species in aqueous solution at pH >7. c. Sodium benzoate is less soluble in water than benzoic acid. d. Benzoic acid is extracted out of diethyl ether by treatment with aqueous sodium bicarbonate. ANSWER: c Can you explain why the answers a,b,d are wrong please
2. A solution containing a mixture of naphthalene, benzoic acid, and benzaldehyde is analyzed via TLC...
2. A solution containing a mixture of naphthalene, benzoic acid, and benzaldehyde is analyzed via TLC and GC. Use the structures and properties of the compounds to aid in answering the following questions. A. In the TLC experiment, the mixture is spotted on a silica TLC plate and eluted with a 1:1 mixture of hexanes and ethyl acetate. Three spots are observed on the plate, with Re values of 0.25, 0.58, and 0.74. Indicate which spot corresponds to which compound....
Which of the following compounds, when treated with sodium nitrite in aqueous hydrochloric acid at room...
Which of the following
compounds, when treated with sodium nitrite in aqueous hydrochloric
acid at room temperature, do not generate nitrogen gas?
NHCHa NH2 CH2NH2 N(CH3)2 CH3 3 4 2 A. 2 and 4 only D. 1, 2, and 4 only B. 2 and 3 only E. 2, 3, and 4 only C. 1 and 4 only
22. Write an equation that accounts for the solability of benzoic acid in aqueous base, 23....
22. Write an equation that accounts for the solability of benzoic acid in aqueous base, 23. What would you expect to happen if a solution of sodium benzoate were acidified? Write an equation. 24. What would have been the effect of omitting the sulfuric acid from methyl benzoate preparation by reacting benzoic acid with methanol? 25. Criticize the following techniques: (a) Heating a mixture that contains n-hexane using an open flame. (b) For a reaction, heating a mixture that contains...
10. (a) A chemist needed a buffered solution of propionic acid (CH,CH,COOH) and its salt (CH,CH,COON.)....
10. (a) A chemist needed a buffered solution of propionic acid (CH,CH,COOH) and its salt (CH,CH,COON.). Calculate the ratio (CH:CH;COONA] / [CH;CH;COOH] required to yield a pH of 4.A0 (Ka for propionic acid = 1.3x10) (b) A buffer solution is prepared by mixing 1.AB5 grams of acetic acid (CH3COOH) and 3.01C grams of sodium acetate (CH3COONA) and making the total volume to one litre. Calculate the pH of the buffer solution. (Ka = 1.8x10°) (RAM of H=1, C=12, O=16, Na=23)...
Part 3. Problems 1) The molarity of naphthaline in a solution of naphthalene (CH. MW-128.8), a...
Part 3. Problems 1) The molarity of naphthaline in a solution of naphthalene (CH. MW-128.8), a non-ionizing and nonvolatile solute, and benzene (C.HS, MW = 78.11), a volatile solvent, is [CHx] = 0.125 M. The density of the solution is D= 0.8781 g/cm! Find the following: a) The osmotic pressure exerted by the solution, at T = 25.0°C. Give your final answer in units of torr. [8 points] b) Xn, the mole fraction of naphthalene in the solution. [15 points)...
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,...
Question 8 Status: Incomplete answer Points possible: 1.00 When separating benzoic acid, naphthalene, and aniline, identify the solution used for each described purpose. Extract aniline into the aqueous layer Choose... Extract reconstituted benzoic acid out of the aqueous layer Choose... Choose... Choose... Reconstitute benzoic acid from aqueous layer Reconstitute aniline from aqueous layer Extract benzoic acid into the aqueous layer Extract reconstituted aniline out of the aqueous layer Please answer all parts of the question. Choose... Choose...
Options for each question: 6 M
HCL, 5% HCL solution, Dichloromethane, 6 M NaOH, 5% NaOH
solution
Question 8 Status: Not yet answered Points possible: 1.00 When separating benzoic acid, naphthalene, and aniline, identify the solution used for each described purpose. Reconstitute benzoic acid from aqueous layer Choose... Extract benzoic acid into the aqueous layer Choose... Reconstitute aniline from aqueous layer Choose.. Extract aniline into the aqueous layer Choose... Extract reconstituted benzoic acid out of the aqueous layer Choose... Extract...
2. A solution containing a mixture of naphthalene, benzoic acid, and benzaldehyde is analyzed via TLC and GC. Use the structures and properties of the compounds to aid in answering the following questions. A. In the TLC experiment, the mixture is spotted on a silica TLC plate and eluted with a 1:1 mixture of hexanes and ethyl acetate. Three spots are observed on the plate, with Re values of 0.25, 0.58, and 0.74. Indicate which spot corresponds to which compound....
Which of the following
compounds, when treated with sodium nitrite in aqueous hydrochloric
acid at room temperature, do not generate nitrogen gas?
NHCHa NH2 CH2NH2 N(CH3)2 CH3 3 4 2 A. 2 and 4 only D. 1, 2, and 4 only B. 2 and 3 only E. 2, 3, and 4 only C. 1 and 4 only
22. Write an equation that accounts for the solability of benzoic acid in aqueous base, 23. What would you expect to happen if a solution of sodium benzoate were acidified? Write an equation. 24. What would have been the effect of omitting the sulfuric acid from methyl benzoate preparation by reacting benzoic acid with methanol? 25. Criticize the following techniques: (a) Heating a mixture that contains n-hexane using an open flame. (b) For a reaction, heating a mixture that contains...
Part 3. Problems 1) The molarity of naphthaline in a solution of naphthalene (CH. MW-128.8), a non-ionizing and nonvolatile solute, and benzene (C.HS, MW = 78.11), a volatile solvent, is [CHx] = 0.125 M. The density of the solution is D= 0.8781 g/cm! Find the following: a) The osmotic pressure exerted by the solution, at T = 25.0°C. Give your final answer in units of torr. [8 points] b) Xn, the mole fraction of naphthalene in the solution. [15 points)...
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,...
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