In the process of the purification of cyclohexene, we used a saturated NaCl solution to wash the crude product instead o...
In the process of the purification of cyclohexene, we used a saturated NaCl solution to wash the crude product instead of the same volume of pure water. Explain why.
Homework Answers
Saturated solution of NaCl is also called as Brine solution and the reason to use instead of water is to remove large amounts of water that may have dissolved in the organic phase and prevents the formation of any emulsions that may formed during shaking in the separating funnel.
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In the process of the purification of cyclohexene, we used a saturated NaCl solution to wash the crude product instead o...
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during work up of the oxidation product mixture, washes of the toluene solution was saturated aqueous...
during work up of the oxidation product mixture, washes of the
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remove as much of the Starks catalyst as possible. why was possible
contamination of the crude product with the tetralkylammonium
chloride salt a concern during column chromatography
5. During work-up of the oxidation product mixture, washes of the toluene solution with sat. aq. NaCl solution were done to remove as much of the Stark's Catalyst as possible. Why was...
Pre-lab Study Questions 1. Write the solubility product Ksp for the following compounds. a. FeS ...
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need help answing this questions for a lab report
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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...
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....
Part A and Part B. Also question #3-post lab. (its circled) A. Molar Solubility and Solubility Product of Calcium Hydroxide Trial I Trial 3 Trial 2 25.0 1. Volume of saturated Ca(OH), solution (m...
Part A and Part B.
Also question #3-post lab. (its circled)
A. Molar Solubility and Solubility Product of Calcium Hydroxide Trial I Trial 3 Trial 2 25.0 1. Volume of saturated Ca(OH), solution (mL) 2. Concentration of standardized HCl solution (molU/L) 3. Buret reading, initial (mL 4. Buret reading, final (mL) 5. Volume of HCI added (mL) 6. Moles of HCI added (mol) 7. Moles of OH" in saturated solution (mol) 8. (OH1, equilibrium (mol/L) 9. (Ca2 ], equilibrium (mol/L)...
worksheet torcyclohexene" 1. Why do we use H3PO4 instead of H2SO4 as a catalyst for the synthesis of cyclohexene? (2 pts.) 2. Why do we use H3PO4 instead of HCl as a catalyst for the synthesis of cyclohexene? (3 pts.) 3. What alkeneſs) would be produced on dehydration of each of the following alcohols? If more than one product is possible, use Zaitsev's rule to predict which product would be formed in greater amounts. (9 pts.) Hz a) 2-methylcyclohexanol bi...
during work up of the oxidation product mixture, washes of the
toluene solution was saturated aqueous NaCl solution we're done to
remove as much of the Starks catalyst as possible. why was possible
contamination of the crude product with the tetralkylammonium
chloride salt a concern during column chromatography
5. During work-up of the oxidation product mixture, washes of the toluene solution with sat. aq. NaCl solution were done to remove as much of the Stark's Catalyst as possible. Why was...
b. MgCl, is dissolved in distilled water at 25°C until the saturated solution is obtained (system reaches equilibrium). The concentration of Mg2 in the saturated solution is 1.35 x 10-'M. The dissolution of MgCl, in distilled water is endothermic. Write the balanced chemical equation to obtain the saturated solution Calculate the solubility product, K of MgCl2. Explain the effect of increasing the temperature on the amount of MgCl, Justify your answer. C. When solid Pbl, is added to pure water...
need help answing this questions for a lab report
2. Explain why the synthetic process used here allows one to carry the reaction to t eaöuht of water produced during this reaction. completion. How would you alter the procedure so that the reverse process would occur. Why does cyclohexene have a lower boiling point than either cyclohexanol or dicyclohexyl ether? 4. 5. What would the likely product be from the dehydration of 3-phenyl-2-butanol? VIII. Reactions of Cyclic Compounds A. B....
Why did you wash the ether solution with sodium bicarbonate? Write chemical equations for the reactions that took place. b. At which purification steps was the unreacted methanol removed in the reaction? Some of it may have been removed in more than one place. c. Three-Step Synthesis of Methyl Anisate (Step 3) 0 CHOH. Н.so, cat.) Wear gloves. Methanol is poisonous. Ether is an anesthetic, so don't breathe it. Sulfuric acid is a strong corrosive acid. Wash any you spill...
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...
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....
Part A and Part B.
Also question #3-post lab. (its circled)
A. Molar Solubility and Solubility Product of Calcium Hydroxide Trial I Trial 3 Trial 2 25.0 1. Volume of saturated Ca(OH), solution (mL) 2. Concentration of standardized HCl solution (molU/L) 3. Buret reading, initial (mL 4. Buret reading, final (mL) 5. Volume of HCI added (mL) 6. Moles of HCI added (mol) 7. Moles of OH" in saturated solution (mol) 8. (OH1, equilibrium (mol/L) 9. (Ca2 ], equilibrium (mol/L)...
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