![Measure 2.0 ml, of the mixed acid (1:l sulfuric acid and nite a small test tube or a conical vial. In small pottions, add divided naphthalene to the mixed acid, stirring or shaking each addition and cooling [OP-8] as nece around 45-S0°C. Then stit or shake the reaction mixture in a 60 bath for 20 minutes. After the reaction mixture cools to room tempera- ture, transfer it to a beaker ring. Wait for the yellow product to solidify, and then decant the liquid (see OP-15), leaving the solid behind. Under the hood, boil the solid with 15 mL of fresh water for 10 minutes or more. Co of finely OP-10) after ssary to keep the temperature °C water containing 50 mL. of ice-cold water, with stir- ol the mixture in ice, and collect the product by vacuum filtration (OP-16]. Recrystallize (OP-28) about 0.2 g of the crude product by heating it under reflux [OP-7] for 5 minutes or more with 10 mL of hexanes and filtering [OP-15] the hot solution leave any undissolved oil behind) with a preheated filtering pipet or a powder funnel. When crystallization is complete, collect the product by vacuum filtration. Dry [OP-26a] it and the unpurified product. Measure the total mass of the nitronaphthalene and the melting point [OP-33] of the purified product Deduce the structure of the product. Write a mechanism for the reac- ion, showing all resonance structures for the intermediate, and explain its rientation. ropnrotion of Aldol](http://img.homeworklib.com/questions/c72d7660-d0da-11ea-b6a4-e7bc32338969.png?x-oss-process=image/resize,w_560)
Naphthol was used in place of naphthalene. The product that resulted was 2-nitro-1-naphtol which was determined by comparing the melting points. I'm unsure of the mechanism for the reaction with the flow of electrons
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Naphthol was used in place of naphthalene. The product
that resulted was 2-nitro-1-naphtol which was determined...
Running the Reaction Add 0.100 g benzil and 0.30 mL 95% ethanol to a 3-mL conical vial. Place a s...
Determine the theoretical yield and limiting reagent
Running the Reaction Add 0.100 g benzil and 0.30 mL 95% ethanol to a 3-mL conical vial. Place a spin vane in the vial and attach an air condenser. Heat the mixture with an aluminum block (90-100°C) while stirring until the benzil has dissolved (see inset in Tech- nique 6, Figure 6.1A). Using a 9-inch Pasteur pipette, add dropwise 0.25 mL of an aqueous potassium hydroxide solution' downward through the condenser into the...
For the nitration of methyl benzoate: a. Which product did you get? What evidence do you...
For the nitration of methyl benzoate:
a. Which product did you get? What evidence do you have for
this?
b. Was your product pure? What evidence do you have for this?
Explain your evidence.
c. Draw the mechanism for the product you got.
For the bromination of acetanilide:
a. Which product did you get? What evidence do you have for
this?
b. Was your product pure? What evidence do you have for this?
Explain your evidence.
c. Draw the mechanism...
this is the procedure of melting point experiment ( preparation acetanilid) I want the summarize of...
this is the procedure of melting point experiment
( preparation acetanilid) I want the summarize of this
procedure
EXPERIMENTAL PROCEDURE Measure 0.100 to 0.125 g of aniline (in dropper bottles near the balances) into a tared reaction tube from the microscale kit and record the weight to the nearest milligram. Add 2 mL of distilled water and 6 to 7 drops (an excess amount, 21 drops =1 mL) of acetic anhydride. Stir the mixture for about 4 minutes untiha solid...
Place 3.0 g of salicylic acid in a 125-ml Erlenmeyer flask. Carefully add, stirring constantly, 6...
Place 3.0 g of salicylic acid in a 125-ml Erlenmeyer flask. Carefully add, stirring constantly, 6 mL of acetic anhydride, followed by 10 drops of concentrated sulfuric acid. Swirl the contents of the flask so that the reactants are thoroughly mixed. Stopper the flask with a one- hole cork fitted with an inverted Pasteur pipet to prevent condensation of water in the reaction flask during heating on the steam bath. Heat the flask in a boiling-water or steam bath for...
Write out your separation scheme for this experiment. 1. Heat 75 mL of water to 90...
Write out your separation scheme for this experiment. 1. Heat 75 mL of water to 90 °C in a 250-mL beaker. 2. While the water is being heated, place 250 mg of salicylic acid, 1 drop of 85% phosphoric acid and 0.5 mL of acetic anhydride in a test tube. Add a boiling chip to the mixture and gently shake it in order to mix the reactants. 3. Heat the tube in the beaker of water at 85 - 90...
Can you explain how to find what is the theoretical yield, and the desired percent yield...
Can you explain how to find what is the theoretical yield, and
the desired percent yield of ethyl 4-nitrobenzoate?
1. Synthesis of ethyl 4-nitrobenzoate a) In a 50-ml round-bottom flask, weigh out 4-nitrobenzoic acid (0.85 g, 0.005 mol). Add to this 8 ml of absolute ethanol. Add boiling stones, and then bring this solution to the Lab Technologist. WATER OUT b) The Lab Technologist will deliver 1.2 ml of concentrated sulfuric acid to the mixture from the automatic pipette. [CAUTION,...
1.) What side reactions occur during the following steps. 2.) How can the IR spectrum be...
1.)
What side reactions occur during the following steps.
2.) How can the IR spectrum be used to show that there is not
starting material left and the products are ketones?
3.) Describe the major differences and similarities between
the IR spectra of benzoin and benzil. Compare your IR spectrum with
those of benzoin and benzil.
Copper-Catalyzed Oxidation of Benzoin 1. Add a stir bar and 1.5 mL of glacial acetic acid, 0.250 g of NH4NO3 and 0.500 g of...
Post lab Exp 10: Preparation of benzil from benzoin Place 1 g of benzoin and 3...
Post lab
Exp 10: Preparation of benzil from benzoin Place 1 g of benzoin and 3 mL of concentrated nitric acid in a 50 mL beaker. Heat the mixture on a water bath for 15 minutes. At the end of this time, add 30 mL of cold water to the reaction mixture. Cooling the reaction mixture in ice-water bath will cause crystallization. Vacuum filter the product. Press the crystal gently with a clean glass stopper to remove as much of...
QUESTION: Write a flow scheme for the work-up. THE WORK UP:
QUESTION:
Write a flow scheme for the work-up.
THE WORK UP:
C. Work-up (save all layers) and Isolation of Product MgBrCl Benzoic acid Transfer the mixture into a test tube. Rinse the beaker with about 3 mL of regular (not anhydrous) diethyl ether and pour the washings into the test tube. There should be two distinct layers in the test tube Remove the aqueous layer (to be discarded) and shake the ether layer with about 2 mL of 3 M...
SYNTHESIS OF trans-p-ANISALACETOPHENONE Prepare a table of all chemicals used in the procedure with their purpose...
SYNTHESIS OF trans-p-ANISALACETOPHENONE
Prepare a table of all chemicals used in the procedure with
their purpose
Melting point of trans-p-anisalacetophenone (with source) and
Molar mass of trans-p-anisalacetophenone (with source) (i cant find
these two things anywhere)
Procedure: 1. Carefully measure 1.0 mL each of p-anisaldehyde and acetophenone and place them in a screw-cap testtube. 2. To this add 3.0 mL of 95% ethanol. Shake the test tube gently to achieve a homogenous mixture. 3. Add 6-7 drops of 40% sodium...
Determine the theoretical yield and limiting reagent
Running the Reaction Add 0.100 g benzil and 0.30 mL 95% ethanol to a 3-mL conical vial. Place a spin vane in the vial and attach an air condenser. Heat the mixture with an aluminum block (90-100°C) while stirring until the benzil has dissolved (see inset in Tech- nique 6, Figure 6.1A). Using a 9-inch Pasteur pipette, add dropwise 0.25 mL of an aqueous potassium hydroxide solution' downward through the condenser into the...
For the nitration of methyl benzoate:
a. Which product did you get? What evidence do you have for
this?
b. Was your product pure? What evidence do you have for this?
Explain your evidence.
c. Draw the mechanism for the product you got.
For the bromination of acetanilide:
a. Which product did you get? What evidence do you have for
this?
b. Was your product pure? What evidence do you have for this?
Explain your evidence.
c. Draw the mechanism...
this is the procedure of melting point experiment
( preparation acetanilid) I want the summarize of this
procedure
EXPERIMENTAL PROCEDURE Measure 0.100 to 0.125 g of aniline (in dropper bottles near the balances) into a tared reaction tube from the microscale kit and record the weight to the nearest milligram. Add 2 mL of distilled water and 6 to 7 drops (an excess amount, 21 drops =1 mL) of acetic anhydride. Stir the mixture for about 4 minutes untiha solid...
Place 3.0 g of salicylic acid in a 125-ml Erlenmeyer flask. Carefully add, stirring constantly, 6 mL of acetic anhydride, followed by 10 drops of concentrated sulfuric acid. Swirl the contents of the flask so that the reactants are thoroughly mixed. Stopper the flask with a one- hole cork fitted with an inverted Pasteur pipet to prevent condensation of water in the reaction flask during heating on the steam bath. Heat the flask in a boiling-water or steam bath for...
Can you explain how to find what is the theoretical yield, and
the desired percent yield of ethyl 4-nitrobenzoate?
1. Synthesis of ethyl 4-nitrobenzoate a) In a 50-ml round-bottom flask, weigh out 4-nitrobenzoic acid (0.85 g, 0.005 mol). Add to this 8 ml of absolute ethanol. Add boiling stones, and then bring this solution to the Lab Technologist. WATER OUT b) The Lab Technologist will deliver 1.2 ml of concentrated sulfuric acid to the mixture from the automatic pipette. [CAUTION,...
1.)
What side reactions occur during the following steps.
2.) How can the IR spectrum be used to show that there is not
starting material left and the products are ketones?
3.) Describe the major differences and similarities between
the IR spectra of benzoin and benzil. Compare your IR spectrum with
those of benzoin and benzil.
Copper-Catalyzed Oxidation of Benzoin 1. Add a stir bar and 1.5 mL of glacial acetic acid, 0.250 g of NH4NO3 and 0.500 g of...
Post lab
Exp 10: Preparation of benzil from benzoin Place 1 g of benzoin and 3 mL of concentrated nitric acid in a 50 mL beaker. Heat the mixture on a water bath for 15 minutes. At the end of this time, add 30 mL of cold water to the reaction mixture. Cooling the reaction mixture in ice-water bath will cause crystallization. Vacuum filter the product. Press the crystal gently with a clean glass stopper to remove as much of...
QUESTION:
Write a flow scheme for the work-up.
THE WORK UP:
C. Work-up (save all layers) and Isolation of Product MgBrCl Benzoic acid Transfer the mixture into a test tube. Rinse the beaker with about 3 mL of regular (not anhydrous) diethyl ether and pour the washings into the test tube. There should be two distinct layers in the test tube Remove the aqueous layer (to be discarded) and shake the ether layer with about 2 mL of 3 M...
SYNTHESIS OF trans-p-ANISALACETOPHENONE
Prepare a table of all chemicals used in the procedure with
their purpose
Melting point of trans-p-anisalacetophenone (with source) and
Molar mass of trans-p-anisalacetophenone (with source) (i cant find
these two things anywhere)
Procedure: 1. Carefully measure 1.0 mL each of p-anisaldehyde and acetophenone and place them in a screw-cap testtube. 2. To this add 3.0 mL of 95% ethanol. Shake the test tube gently to achieve a homogenous mixture. 3. Add 6-7 drops of 40% sodium...
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