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 |
Homework Answers
Generally we are using an ether as the best and potential solvent to extract organic compounds from the mixture.
If you want to extract a compound from water then Hexanes is the better choice because hexane has less solubility in water than that of ether.
Potential solvent for extracting an organic compound from water is Hexane.
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Which of the following solvents would potentially be suitable
for extracting an organic compound from water?...
Pre-lab questions for Experiment #1: Crystallization 1. Why should open flames NOT be used around organic...
Pre-lab questions for Experiment #1: Crystallization 1. Why should open flames NOT be used around organic solvents? 2. Of the following, which are flammable? Circle all that apply. Acetone Water Ethanol 3. An organic compound (literature mp=255 - 256°C) has the following solubilities: solvent soluble cold soluble hot acetone yes yes water no no ethanol no yes petroleum ether no no Which is the best solvent to recrystallize the organic compound? Why? Why are the other solvents not suitable? Explain...
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)...
5. Which compound in each of the following pairs, if either, would have the higher solubility...
5. Which compound in each of the following pairs, if either, would have the higher solubility in water? your answers briefly a) propane or ethanol b) ethanol or eicosane (CoH42) (Wikipedia will give you the BP for both. This is the only question you need to look up BP's for.) b) 2-butanol or 2-heptanol c) ethyl propyl ether or 1-pentanol d) diethyl ether or 1-decanol e) 1-butanol (aka n-butyl alcohol) and +butyl alcohol
Part B Questions 1) Put the letter of the correct answer for each of the following questions in the box to the right 10...
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Which of the following solvents would be good to use for 1h nmr analyses?
Which of the following solvents would be good to use for 1H NMR analyses? (Check all that apply) acetone-d6 chloroform-d dimethyl sulfoxide deuterium oxide acetone
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...
1. Compound X has a solubility in toluene of 18 mg per 100 mL at 20...
1. Compound X has a solubility in toluene of 18 mg per 100 mL at 20 °C, and a solubility of 0.64 g per 100 mL at 70 °C. You are given a sample of 0.48 g of compound X which is contaminated with 25 mg of compound Y. A. If compound Y is always soluble in toluene, describe in detail how you could separate Y from X. Would x now be pure? B. If compound Y has approximately the same values of...
Part B - Questions 1) Put the letter of the correct answer for each of the...
Part B - Questions 1) Put the letter of the correct answer for each of the following questions in the box to the right. 10 points a. For a mixture of pure hexane and pure dimethylformamide, the dimethylformamide layer will be found as: (A) the top layer (B) the bottom layer (C) neither; the two (D) cannot determine solvents are miscible b. To extract aniline (C&H5NH2) from a solution of chloroform, one would use: (A) aqueous HCI (B) aqueous NaOH...
Which of the following solvents would be good to use for 1H NMR analyses? (Check all...
Which of the following solvents would be good to use for 1H NMR analyses? (Check all that apply) acetone-d6 chloroform-d dimethyl sulfoxide deuterium oxide acetone
35. In a distillation set up a) Cold water flows into the condenser from the elevated...
35. In a distillation set up a) Cold water flows into the condenser from the elevated end of the condenser and flows out of the lower end b) Plastic joint clips should not be used to hold the glass joints of the equipment together, equipment clamps are sufficient c) In a properly set up distillation experiment azeotropes will never occur. d) A and C alone e) None of the above 34. If a distillation is carried out under reduced pressure...
Pre-lab questions for Experiment #1: Crystallization 1. Why should open flames NOT be used around organic solvents? 2. Of the following, which are flammable? Circle all that apply. Acetone Water Ethanol 3. An organic compound (literature mp=255 - 256°C) has the following solubilities: solvent soluble cold soluble hot acetone yes yes water no no ethanol no yes petroleum ether no no Which is the best solvent to recrystallize the organic compound? Why? Why are the other solvents not suitable? Explain...
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)...
5. Which compound in each of the following pairs, if either, would have the higher solubility in water? your answers briefly a) propane or ethanol b) ethanol or eicosane (CoH42) (Wikipedia will give you the BP for both. This is the only question you need to look up BP's for.) b) 2-butanol or 2-heptanol c) ethyl propyl ether or 1-pentanol d) diethyl ether or 1-decanol e) 1-butanol (aka n-butyl alcohol) and +butyl alcohol
Part B Questions 1) Put the letter of the correct answer for each of the following questions in the box to the right 10 points a. For a mixture of pure hexane and pure dimethylformamide, the dimethylformamide layer will be found as: (A) the top layer (B) the bottom layer (C) neither; the two (D) cannot determine solvents are miscible b. To extract aniline (CeH5NH2) from a solution of chloroform, one would use: (D) either B or C would work...
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...
Part B - Questions 1) Put the letter of the correct answer for each of the following questions in the box to the right. 10 points a. For a mixture of pure hexane and pure dimethylformamide, the dimethylformamide layer will be found as: (A) the top layer (B) the bottom layer (C) neither; the two (D) cannot determine solvents are miscible b. To extract aniline (C&H5NH2) from a solution of chloroform, one would use: (A) aqueous HCI (B) aqueous NaOH...
35. In a distillation set up a) Cold water flows into the condenser from the elevated end of the condenser and flows out of the lower end b) Plastic joint clips should not be used to hold the glass joints of the equipment together, equipment clamps are sufficient c) In a properly set up distillation experiment azeotropes will never occur. d) A and C alone e) None of the above 34. If a distillation is carried out under reduced pressure...
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