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For the reaction (see picture), what is the reaction equation?
I have: NH3 (aq) + (Bu4N)2[NiBr4]...
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...
EXPERIMENT XVII - SYNTHESIS OF BENZOCAINE Benzocaine is prepared by the of a carboxylic acid with...
AAnswer supplementary questions:
1 to 3
EXPERIMENT XVII - SYNTHESIS OF BENZOCAINE Benzocaine is prepared by the of a carboxylic acid with cthanol. The reaction is: 0 OCH2CH3 + CH CH OH NH NH and Non-Standard Equipment Chemicals absolute ethanol vacuum filter set-up stirring bans concentrated sulfuric acid boiling stones litmus paper 10% sodium carbonate Procedure Dissolve 1.2 g of p-aminobenzoic acid and 12 mL of absolute ethanol in a 100 mL round bottom flask. While swirling, add 1.0 mL...
[(+)-Co(en)3]I3•H2O Preparation Could you help me understand why this reaction happens for this procedure: dissolve [(+)-Co(en)3][(+)-tart]Cl•5H2O...
[(+)-Co(en)3]I3•H2O Preparation Could you help me understand why this reaction happens for this procedure: dissolve [(+)-Co(en)3][(+)-tart]Cl•5H2O in 15 mL of warm water and add 0.25 mL of concentrated ammonia (15 M) solution. With stirring, add a solution of 17.0 g of NaI in 7 mL hot water. After cooling in an ice-water bath, filter the product using vacuum filtration and wash the crystals with an ice cold solution of 3.00 g of NaI in 10 mL of water. Wash the...
i need to calculate the theortetical yield by finding the limiting reactant of the experiment by...
i need to calculate the theortetical yield by finding the
limiting reactant of the experiment by converting reactants to
product, then calculate the percent yield using the limiting
reactant
-in my experiment the amout of crystals i obtained was 1.232 g
(watch glass + filter paper = 31.228 g and watch glass, filter
paper, + crystals = 32.460 g)
REACTION SCHEME H сно, ОН- ОСH, CH panisaldehyde acetophenone Molar Mass: 120.15g/mol Molar Mass: 136.15g/mol Molar Mass: 239.30g/mol Density: 1.119g/mL Density:...
What is the percent yield of the lab procedure below? my final weight of the product is 0.0519 g
what is the percent yield of the lab procedure below?
my final weight of the product is 0.0519 g
sure of the proper disposal methodl, properly Check with your laboratory insructor if you are PROCEDURE Be sure to dry the 5-mL reaction vial in the oven for at least twenty minutes. Water is experiment. this Preparation of the Ylide 1. Place 0.480 g of benzyltriphenylphosphonium chloride in a dry, 5-mlL reaction vial containing a magnetic spin vane Add 2 mL...
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...
weighed watch glass and record the mass of the product. Write a balanced equation for the synthesis and hence...
weighed watch glass and record the mass of the product. Write a balanced equation for the synthesis and hence calculate the percentage yield (based on the mass of the nickel(II) chloride hexahydrate used) and record it, with working, in the lab notebook. 5.0 EXPERIMENTAL PROCEDURES I. Wear gloves throughout the experiment, and work in a fume cupboard throughout. Using an appropriate balance for synthetic work, weigh out 1.5 g of nickel(II) chloride hexahydrate and record the mass used. 2. Dissolve...
Pre-Lab Assignment 1) Draw the reaction mechanism for the reaction. 2) Determine the limiting reagent. Procedure...
Pre-Lab Assignment
1) Draw the reaction mechanism for the reaction.
2) Determine the limiting reagent.
Procedure 1 Place approximately 1 g of stilbene dibromide prepared in last week's experiment in a 50 mL round bottom flask. Record the exact mass. Add 0.8 g of KOH and 4 mL of triethylene glycol from the syringe provided in the fume hood (rinse any crystals from the sides of the flask while adding triethylene glycol). 2 Heat the stirred reaction mixture to a...
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,...
Find %yield please the product obtained was 0.0870g In the hood, place 100 mu L of...
Find %yield please the product obtained was 0.0870g
In the hood, place 100 mu L of aniline in a tared 10 times 75 mm (small) test tube. Place the test cube in a small beaker or Erlenmeyer flask to avoid spillage. Stopper the cube with a cork. Now, using a Pasteur pipet, add (with swirling) 0.5 mL of water, followed by three drops of concentrated HCI. Add 10 mg of decolorizing charcoal (we use the pelletized form, called Nonrit^TM) to...
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...
AAnswer supplementary questions:
1 to 3
EXPERIMENT XVII - SYNTHESIS OF BENZOCAINE Benzocaine is prepared by the of a carboxylic acid with cthanol. The reaction is: 0 OCH2CH3 + CH CH OH NH NH and Non-Standard Equipment Chemicals absolute ethanol vacuum filter set-up stirring bans concentrated sulfuric acid boiling stones litmus paper 10% sodium carbonate Procedure Dissolve 1.2 g of p-aminobenzoic acid and 12 mL of absolute ethanol in a 100 mL round bottom flask. While swirling, add 1.0 mL...
i need to calculate the theortetical yield by finding the
limiting reactant of the experiment by converting reactants to
product, then calculate the percent yield using the limiting
reactant
-in my experiment the amout of crystals i obtained was 1.232 g
(watch glass + filter paper = 31.228 g and watch glass, filter
paper, + crystals = 32.460 g)
REACTION SCHEME H сно, ОН- ОСH, CH panisaldehyde acetophenone Molar Mass: 120.15g/mol Molar Mass: 136.15g/mol Molar Mass: 239.30g/mol Density: 1.119g/mL Density:...
what is the percent yield of the lab procedure below?
my final weight of the product is 0.0519 g
sure of the proper disposal methodl, properly Check with your laboratory insructor if you are PROCEDURE Be sure to dry the 5-mL reaction vial in the oven for at least twenty minutes. Water is experiment. this Preparation of the Ylide 1. Place 0.480 g of benzyltriphenylphosphonium chloride in a dry, 5-mlL reaction vial containing a magnetic spin vane Add 2 mL...
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...
weighed watch glass and record the mass of the product. Write a balanced equation for the synthesis and hence calculate the percentage yield (based on the mass of the nickel(II) chloride hexahydrate used) and record it, with working, in the lab notebook. 5.0 EXPERIMENTAL PROCEDURES I. Wear gloves throughout the experiment, and work in a fume cupboard throughout. Using an appropriate balance for synthetic work, weigh out 1.5 g of nickel(II) chloride hexahydrate and record the mass used. 2. Dissolve...
Pre-Lab Assignment
1) Draw the reaction mechanism for the reaction.
2) Determine the limiting reagent.
Procedure 1 Place approximately 1 g of stilbene dibromide prepared in last week's experiment in a 50 mL round bottom flask. Record the exact mass. Add 0.8 g of KOH and 4 mL of triethylene glycol from the syringe provided in the fume hood (rinse any crystals from the sides of the flask while adding triethylene glycol). 2 Heat the stirred reaction mixture to a...
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,...
Find %yield please the product obtained was 0.0870g
In the hood, place 100 mu L of aniline in a tared 10 times 75 mm (small) test tube. Place the test cube in a small beaker or Erlenmeyer flask to avoid spillage. Stopper the cube with a cork. Now, using a Pasteur pipet, add (with swirling) 0.5 mL of water, followed by three drops of concentrated HCI. Add 10 mg of decolorizing charcoal (we use the pelletized form, called Nonrit^TM) to...
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Hydrobromic acid
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