Homework Answers
After reaction, extract the reaction with ethyl acetate. Removed aqueous layer. Then washed the organic layer with brine solution to remove any inorganic byproduct.
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Prepare a detailed flow sheet for the isolation and purification of 1-bromobutane. Indicate how each reaction...
4. What toxic fumes evolve in fires involving 1-bromobutane? 5. In the purification process, the organic...
4. What toxic fumes evolve in fires involving 1-bromobutane? 5. In the purification process, the organic layer was washed with cold 2 M NaOH solution and then with saturated NaCl solution. What is the purpose of these washes? 6. Why is the 1-bromobutane treated with anhydrous sodium sulfate? 7. Why does the final step of purification involve a distillation? Suggest what is removed by this distillation.
Reaction Workup and Purification For the reaction depicted below.drowa flowchart for the isolation of the other...
Reaction Workup and Purification For the reaction depicted below.drowa flowchart for the isolation of the other product. Then explain why recrystallization would or would not be a good technique to put the este product this reaction. Assume the yield for this reaction is 92. You wil l need the first lecture on 10/7 to complete this explanation. You can at least complete the flow charts before this lecture) Follow up: What the yield was 53%? Hints. Remember that recrystallation would...
Prepare a flow chart outlining the reactive acid base extraction for this experiment. It should indicate...
Prepare a flow chart outlining the reactive acid base extraction
for this experiment. It should indicate which compounds end up in
each layer of your separatory funnel in each step of your
extraction, showing all compounds in the correct protonation state.
Please keep in mind that acid chlorides are rapidly hydrolyzed in
acidic or basic aqueous solution.
Prepare a flow chart outlining the reactive acid-base extraction for this experiment. It should indicate which...
Prepare a flow chart outlining the
reactive acid-base extraction for this experiment. It should
indicate which compounds end up in each layer of your separatory
funnel in each step of your extraction, showing all compounds in
the correct protonation state. Please keep in mind that acid
chlorides are rapidly hydrolyzed in acidic or basic aqueous
solution.
2. Starting with butane, show, using chemical equations, how you could prepare a. 2-bromobutane b. 1-bromobutane...
2. Starting with butane, show, using chemical equations, how you could prepare a. 2-bromobutane b. 1-bromobutane Note: For the following targets, you may also choose to begin with either 2-bromobutane or the 1-bromobutane as prepared above without repeatedly showing how you made these two compounds. Be sure to choose the best starting material for each job! c. 1-butene d. e. 3-methylheptane f. 5-methyl-3-heptyne
2. Starting with butane, show, using chemical equations, how you could prepare a. 2-bromobutane b. 1-bromobutane Note:...
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...
3. Draw a stepwise, detailed mechanism for the acid-catalyzed hydration reaction in question 2 above. Use...
3. Draw a stepwise, detailed mechanism for the acid-catalyzed hydration reaction in question 2 above. Use curved arrows to indicate the flow of electrons. (Note: use hydronium ion, H307, in your mechanism to indicate "acidic water"). (6 pts) 4. Draw a stepwise, detailed mechanism for the reaction below. Use curved arrows to indicate the flow of electrons. (Hint: think of this reaction as a combination of addition of HX (step 1) and hydration (step 2)]. In the second step, an...
Synthesis of 1-Bromobutane: An SN2 Reaction Pre-Laboratory Exercises PRE-LABORATORY EXERCISES NAME: Cynthesis of 1-Bromobutane: An SN...
Synthesis of 1-Bromobutane: An SN2 Reaction Pre-Laboratory
Exercises
PRE-LABORATORY EXERCISES NAME: Cynthesis of 1-Bromobutane: An SN 2 Reaction Butylbromide was prepared by refluxing in a 100-ml round bottomed flask a solution containing 13:35 Br 15 ml of water, 10 mL of n-butyl alcohol. 15 ml of concentrated H.SO. and a few boiling stories, 1. 2. R." d 1.275 laborales Nel CH3CH2CH2CH2OH + NaBr H2SO4 Superletalyst CHCH2CH2CHBr + NaHSO + HO (eq. 16) 1-butanol bp 118 C 1-bromobutane d 0.810 bp...
1. For each reaction below, draw all appropriate arrows to indicate the flow of electrons on...
1. For each reaction below, draw all appropriate arrows to indicate the flow of electrons on the starting structures. Fill in the box above the arrows with the reaction mechanism as SN1, SN2, E1 and/or E1 then draw the product(s). CH3OH + CH3OH enski CH2SK + Acetone 2. (a) For the following reaction, what solvent would favor SN2 (protic or aprotic)? Provide one example of the appropriate solvent. Н (b) Please explain why you chose your answer for (a). Bonus...
In a Cannizzaro reaction (unknwon benzaldehyde with 4ml of 10M KOH and 5ml Methanol) 1. Prepare...
In a Cannizzaro reaction (unknwon benzaldehyde with 4ml of 10M KOH and 5ml Methanol) 1. Prepare a flow chart of the procedure you plan to use to separate the two possible products from each other. 2. Calculate the amount of 6 M HCl that is needed to acidify your reaction mixture to pH 2 after the reaction is complete. 3. Prepare a flow chart to show how the reaction and isolation process will be conducted and to show the reactions...
Reaction Workup and Purification For the reaction depicted below.drowa flowchart for the isolation of the other product. Then explain why recrystallization would or would not be a good technique to put the este product this reaction. Assume the yield for this reaction is 92. You wil l need the first lecture on 10/7 to complete this explanation. You can at least complete the flow charts before this lecture) Follow up: What the yield was 53%? Hints. Remember that recrystallation would...
Prepare a flow chart outlining the reactive acid base extraction
for this experiment. It should indicate which compounds end up in
each layer of your separatory funnel in each step of your
extraction, showing all compounds in the correct protonation state.
Please keep in mind that acid chlorides are rapidly hydrolyzed in
acidic or basic aqueous solution.
Prepare a flow chart outlining the
reactive acid-base extraction for this experiment. It should
indicate which compounds end up in each layer of your separatory
funnel in each step of your extraction, showing all compounds in
the correct protonation state. Please keep in mind that acid
chlorides are rapidly hydrolyzed in acidic or basic aqueous
solution.
2. Starting with butane, show, using chemical equations, how you could prepare a. 2-bromobutane b. 1-bromobutane Note: For the following targets, you may also choose to begin with either 2-bromobutane or the 1-bromobutane as prepared above without repeatedly showing how you made these two compounds. Be sure to choose the best starting material for each job! c. 1-butene d. e. 3-methylheptane f. 5-methyl-3-heptyne
2. Starting with butane, show, using chemical equations, how you could prepare a. 2-bromobutane b. 1-bromobutane Note:...
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...
3. Draw a stepwise, detailed mechanism for the acid-catalyzed hydration reaction in question 2 above. Use curved arrows to indicate the flow of electrons. (Note: use hydronium ion, H307, in your mechanism to indicate "acidic water"). (6 pts) 4. Draw a stepwise, detailed mechanism for the reaction below. Use curved arrows to indicate the flow of electrons. (Hint: think of this reaction as a combination of addition of HX (step 1) and hydration (step 2)]. In the second step, an...
Synthesis of 1-Bromobutane: An SN2 Reaction Pre-Laboratory
Exercises
PRE-LABORATORY EXERCISES NAME: Cynthesis of 1-Bromobutane: An SN 2 Reaction Butylbromide was prepared by refluxing in a 100-ml round bottomed flask a solution containing 13:35 Br 15 ml of water, 10 mL of n-butyl alcohol. 15 ml of concentrated H.SO. and a few boiling stories, 1. 2. R." d 1.275 laborales Nel CH3CH2CH2CH2OH + NaBr H2SO4 Superletalyst CHCH2CH2CHBr + NaHSO + HO (eq. 16) 1-butanol bp 118 C 1-bromobutane d 0.810 bp...
1. For each reaction below, draw all appropriate arrows to indicate the flow of electrons on the starting structures. Fill in the box above the arrows with the reaction mechanism as SN1, SN2, E1 and/or E1 then draw the product(s). CH3OH + CH3OH enski CH2SK + Acetone 2. (a) For the following reaction, what solvent would favor SN2 (protic or aprotic)? Provide one example of the appropriate solvent. Н (b) Please explain why you chose your answer for (a). Bonus...
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