(organic lab question) In the preparation of cyclohexene from cyclohexnol, what are the possible impurities in...
(organic lab question) In the preparation of cyclohexene from cyclohexnol, what are the possible impurities in the final product (cyclohexene) and how each was removed.
Does this relate to the three washings that were performed in the lab? it was washed with saturated NaCl, then 10% sodium bicarbonate solution and once again with NaCl. Please explain in details, thanks!
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(organic lab question) In the preparation of cyclohexene from
cyclohexnol, what are the possible impurities in...
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.
MSISTRY 203-204 Grganic Chemistry Lab Manual 3 4 EXPERIMENT #9 The Preparation of t Butyl Chloride A tertiary carbonium ion is more rapidly formed than a secondary or primary carbonium ion. Onc...
MSISTRY 203-204 Grganic Chemistry Lab Manual 3 4 EXPERIMENT #9 The Preparation of t Butyl Chloride A tertiary carbonium ion is more rapidly formed than a secondary or primary carbonium ion. Once formed, a tertiary carbonium ion is stabilized by charge dispersal to a greater extent than a secondary or primary carbonium ion. It therefore has a longer life expectancy. Primary carbonium ions, protons, may exist in solution only in solvated form have any free existence, they dehydration reaction and...
What can cause a low percent yield? In lab we did fischer esterification using benzoic acid...
What can cause a low percent yield? In lab we did fischer esterification using benzoic acid and methanol to yield methyl benzoate. 3.05 grams of benzoic acid were used and 1.10 grams of methyl benzoate were produced. We also washed the product multiple times with water, 10% sodium bicarbonate solution, then saturated sodium chloride solution. Could the washing cause a low percent yield? If so, can you explain why?
Section/Group: Post-Lab: Experiment 8 1. Draw the structure of the major product that would be obtained from the d...
Section/Group: Post-Lab: Experiment 8 1. Draw the structure of the major product that would be obtained from the dehydration of 3. 5-dimethylcyclohexanol 2. In what way did the use of the sodium chloride solution and the separating funnel assist to purify the cyclohexene? See Figure 8.12. Initial distilate with NaCl for pre-drying Upper organic layer (mostly cyclohexene) OG79 Nach NS CH Na co Na Lower aqueous layer (mainly H,0) opangoסניוור CH SCH Figure 8.12. Sodium Chloride for pre-drying. Tests for...
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,...
based on the amount of cyclohexanol used in the procedure, calculate the theoretical yield of cyclohexene...
based on the amount of cyclohexanol used in the procedure,
calculate the theoretical yield of cyclohexene product. show all
work.
info attached below
ОН Н,РО,. H2SO + Н,о Procedure Cyclohexanol (10 g) is weighed into a 50 mL round-bottom three-necked flask, while avoiding getting the liquid on the ground-glass joint. To this is added 2.5 mL of 85% phosphoric acid along with two drops of sulfuric acid (again, avoiding getting the liquids on the joint) and a few boiling stones....
are there any synthetic transformations produced in this lab Step 1. Preparation and Recrystallization of a...
are there any synthetic transformations produced in this
lab
Step 1. Preparation and Recrystallization of a Diastereomeric Salt - Synthesis of (R,R)-1,2-Diammoniumcyclohexane mono-(+)-tartrate: In a 150 ml beaker, L-(+)-Tartaric acid (7.5 g, 0.05 mol) is dissolved in 25 mL of distilled water. The solution is stirred as 11.4 g (12.2 mL, 0.10 mol) of 1,2-diaminocyclohexane is added carefully in one portion. (The addition of the diamine is exothermic.) A slurry is formed initially but complete dissolution is observed once addition...
Need help making a separation scheme for the synthesis of methylbutene based on the experiment procedure...
Need help making a separation scheme for the synthesis of
methylbutene based on the experiment procedure
Synthesis of Methylbutenes catalyzed Dehydration of 2 Meth H.SO buano detin vee distinct steps in most organic preparat the reaction itself solation of the final product final product purification ances, as in the dehydration of an alcohol, it is necessary to be the first two stesso oduct can be removed from the reaction mixture is formed. This was to drive the brium to toward...
Working on the questions at the end of this lab report (see above). I need help answering questio...
Working on the questions at the end of this lab report
(see above). I need help answering questions 2, 3, and 4 completely
and thoroughly. Thank you!
s, until the I hexano 1 clean disti CYCLOHEXENE from CYCLOHEXANOL be dehydrated with solfuric acid to yield cyclohexene and waterf Add a 0°C (record ct and cal H,SO + H20 ainer. s in purification of any crude product are (a) the preliminary separation of the product from the reaction mixture by distillation...
In Organic Chem II from the Aldol Condensation lab (using 3-nitrobenzaldehyde, acetophenone, ethanol, sodium hydroxide, methanol...
In Organic Chem II from the Aldol Condensation lab (using 3-nitrobenzaldehyde, acetophenone, ethanol, sodium hydroxide, methanol and final product 3-nitrochalcone) please help anser the following answer. Please write clear; many times it's hard to read response on Chegg-thank you. 1. There are two possible products of this aldol condensation. Draw the structure of both. 2. Explain why only one aldol product is formed in this reaction. Comment on both the reactivity of the starting materials as well as your experimental...
MSISTRY 203-204 Grganic Chemistry Lab Manual 3 4 EXPERIMENT #9 The Preparation of t Butyl Chloride A tertiary carbonium ion is more rapidly formed than a secondary or primary carbonium ion. Once formed, a tertiary carbonium ion is stabilized by charge dispersal to a greater extent than a secondary or primary carbonium ion. It therefore has a longer life expectancy. Primary carbonium ions, protons, may exist in solution only in solvated form have any free existence, they dehydration reaction and...
Section/Group: Post-Lab: Experiment 8 1. Draw the structure of the major product that would be obtained from the dehydration of 3. 5-dimethylcyclohexanol 2. In what way did the use of the sodium chloride solution and the separating funnel assist to purify the cyclohexene? See Figure 8.12. Initial distilate with NaCl for pre-drying Upper organic layer (mostly cyclohexene) OG79 Nach NS CH Na co Na Lower aqueous layer (mainly H,0) opangoסניוור CH SCH Figure 8.12. Sodium Chloride for pre-drying. Tests for...
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,...
based on the amount of cyclohexanol used in the procedure,
calculate the theoretical yield of cyclohexene product. show all
work.
info attached below
ОН Н,РО,. H2SO + Н,о Procedure Cyclohexanol (10 g) is weighed into a 50 mL round-bottom three-necked flask, while avoiding getting the liquid on the ground-glass joint. To this is added 2.5 mL of 85% phosphoric acid along with two drops of sulfuric acid (again, avoiding getting the liquids on the joint) and a few boiling stones....
are there any synthetic transformations produced in this
lab
Step 1. Preparation and Recrystallization of a Diastereomeric Salt - Synthesis of (R,R)-1,2-Diammoniumcyclohexane mono-(+)-tartrate: In a 150 ml beaker, L-(+)-Tartaric acid (7.5 g, 0.05 mol) is dissolved in 25 mL of distilled water. The solution is stirred as 11.4 g (12.2 mL, 0.10 mol) of 1,2-diaminocyclohexane is added carefully in one portion. (The addition of the diamine is exothermic.) A slurry is formed initially but complete dissolution is observed once addition...
Need help making a separation scheme for the synthesis of
methylbutene based on the experiment procedure
Synthesis of Methylbutenes catalyzed Dehydration of 2 Meth H.SO buano detin vee distinct steps in most organic preparat the reaction itself solation of the final product final product purification ances, as in the dehydration of an alcohol, it is necessary to be the first two stesso oduct can be removed from the reaction mixture is formed. This was to drive the brium to toward...
Working on the questions at the end of this lab report
(see above). I need help answering questions 2, 3, and 4 completely
and thoroughly. Thank you!
s, until the I hexano 1 clean disti CYCLOHEXENE from CYCLOHEXANOL be dehydrated with solfuric acid to yield cyclohexene and waterf Add a 0°C (record ct and cal H,SO + H20 ainer. s in purification of any crude product are (a) the preliminary separation of the product from the reaction mixture by distillation...
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