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please identify the unknown and write a derivative
Unknown compound 3 Clear liquid Physcial Properties Solubility...
Observations Record observations including appearance of solution (clear, cloudy), color(s) of liquid and s...
Observations Record observations including appearance of solution (clear, cloudy), color(s) of liquid and solid phases, formation of gas, etc. Write a chemical equation for each to describe the reaction observed. Refer to the procedure for hints. A. Preparation of Copper(ll) Nitrate B. Preparation of Copper(1) Hydroxide C. Preparation of Copper(ll) Oxide D. Preparation of Copper(II) Chloride E. 1. Preparation of Copper Metal 2. Reaction of Aluminum with Hydrochloric acid to give Aluminum Chloride and Hydrogen gas. EXPERIMENT SA THE MANY...
Would you please draw the arrow pushing mechanism for these two reactions? Carbonyl compounds Semicarbazones 2,4-Dinitrophenylhydrazones...
Would you please draw the arrow pushing mechanism for these two
reactions?
Carbonyl compounds Semicarbazones 2,4-Dinitrophenylhydrazones Mix 1 mL of semicarbazide hydrochloride with 40 mg of your Mix 2.5 mL of 2.4-Dinitrophenylhydrazin in phosphoric acid and 25 unknown. Add 1 mL of methanol to make the solution clear. mg of your unknown. Warm in a water bath for 5 min and then let crystallization proceed. Collect the product by suction filtration and Add 15 drops of pyridine and warm on...
can someone please answer number one? im so lost DYES AND DYEING CHAPTER 1. Calculate the...
can someone please answer number one? im so lost
DYES AND DYEING CHAPTER 1. Calculate the amounts of salicylic acid, 1-naphthol, 2-naphthol, 8-anilino-1-naph- thalenesulfonic acid ammonium salt, or N,N-dimethylaniline needed for Part 1B of this experiment (use molecules as assigned by your TA). 190mg 3-aminobenzene 2.5mL Sulfonic acid 2.5% sodium carbonate solution 81mg Sodium nitrate 2. What is the purpose of the sodium carbonate in Part 1A? Why do we add glacial acetic acid in Part 13 when we react...
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...
Make a purpose statement synthesis equation table of contents and theoretical yield for the synthesis of...
Make a purpose statement synthesis equation table of contents
and theoretical yield for the synthesis of veratraldehyde oxime (
example given)
NITRILE 1. SYNTHESIS oF VERATRALDEHYDE oxiME Review From previous lab procedures: suction filtration, recrystallization From organic chemistry text: sections 18.15, 18.16 Introduction oximes are usually prepared as derivatives of aldehydes and ketones, and they are used as a means of characterizing them and them. However, be reduced to amines or dehydrated to yield nitriles. Thus, they are also useful...
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...
What could I have done wrong in the saponification of the ester? I did not get soap 1.) Place .18 g of saturated triglyceride in a 5 mL short necked round bottom flask. 2.)Add 1.5 mL of a 50-50 wate...
What could I have done wrong in the saponification of the ester? I did not get soap 1.) Place .18 g of saturated triglyceride in a 5 mL short necked round bottom flask. 2.)Add 1.5 mL of a 50-50 water ethanol solution that contains .18 g of sodium hydroxide. 3.)Add an air condenser and gently reflux mixture on sand bath for 30 minutes Do not boil away ethanol -At the end of their reaction period, some of this soap will...
How do you calculate the empirical and molecular formula of this unknown compound ? How do...
How do you calculate the empirical and molecular formula of
this unknown compound ? How do you calculate the molecular weight
?
Computer Unknown # Physical Properties MP 48-51 °C White solid C = 48.27% H=3.54% Sodium Fusion Test A portion of the sodium fusion filtrate was treated and heated. It was then acidified wit was noticed. filtrate was treated with ferrous sulfate acidified with dilute sulfuric acid. No observable change Another portion of the sodium fus observable change was...
After I made extraction I put dry agent ( sodium magniusm) and the lab time is...
After I made extraction I put dry agent ( sodium magniusm) and
the lab time is up and I left it for two days insteaf of 10 mins
and all my product is gone
Can you pease think if reasons why nothing left ?
Dissolve 12.5 g (0.103 mole) recovered amine, [α]D27: +24.50, in 88 ml of 95% ethanol. (This solution contains 0.062 mole excess +)-amine, based on [a]D2: +40.7° for the pure (+)-amine, and 0.041 mole racemic amine Heat...
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:...
Observations Record observations including appearance of solution (clear, cloudy), color(s) of liquid and solid phases, formation of gas, etc. Write a chemical equation for each to describe the reaction observed. Refer to the procedure for hints. A. Preparation of Copper(ll) Nitrate B. Preparation of Copper(1) Hydroxide C. Preparation of Copper(ll) Oxide D. Preparation of Copper(II) Chloride E. 1. Preparation of Copper Metal 2. Reaction of Aluminum with Hydrochloric acid to give Aluminum Chloride and Hydrogen gas. EXPERIMENT SA THE MANY...
Would you please draw the arrow pushing mechanism for these two
reactions?
Carbonyl compounds Semicarbazones 2,4-Dinitrophenylhydrazones Mix 1 mL of semicarbazide hydrochloride with 40 mg of your Mix 2.5 mL of 2.4-Dinitrophenylhydrazin in phosphoric acid and 25 unknown. Add 1 mL of methanol to make the solution clear. mg of your unknown. Warm in a water bath for 5 min and then let crystallization proceed. Collect the product by suction filtration and Add 15 drops of pyridine and warm on...
can someone please answer number one? im so lost
DYES AND DYEING CHAPTER 1. Calculate the amounts of salicylic acid, 1-naphthol, 2-naphthol, 8-anilino-1-naph- thalenesulfonic acid ammonium salt, or N,N-dimethylaniline needed for Part 1B of this experiment (use molecules as assigned by your TA). 190mg 3-aminobenzene 2.5mL Sulfonic acid 2.5% sodium carbonate solution 81mg Sodium nitrate 2. What is the purpose of the sodium carbonate in Part 1A? Why do we add glacial acetic acid in Part 13 when we react...
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...
Make a purpose statement synthesis equation table of contents
and theoretical yield for the synthesis of veratraldehyde oxime (
example given)
NITRILE 1. SYNTHESIS oF VERATRALDEHYDE oxiME Review From previous lab procedures: suction filtration, recrystallization From organic chemistry text: sections 18.15, 18.16 Introduction oximes are usually prepared as derivatives of aldehydes and ketones, and they are used as a means of characterizing them and them. However, be reduced to amines or dehydrated to yield nitriles. Thus, they are also useful...
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...
How do you calculate the empirical and molecular formula of
this unknown compound ? How do you calculate the molecular weight
?
Computer Unknown # Physical Properties MP 48-51 °C White solid C = 48.27% H=3.54% Sodium Fusion Test A portion of the sodium fusion filtrate was treated and heated. It was then acidified wit was noticed. filtrate was treated with ferrous sulfate acidified with dilute sulfuric acid. No observable change Another portion of the sodium fus observable change was...
After I made extraction I put dry agent ( sodium magniusm) and
the lab time is up and I left it for two days insteaf of 10 mins
and all my product is gone
Can you pease think if reasons why nothing left ?
Dissolve 12.5 g (0.103 mole) recovered amine, [α]D27: +24.50, in 88 ml of 95% ethanol. (This solution contains 0.062 mole excess +)-amine, based on [a]D2: +40.7° for the pure (+)-amine, and 0.041 mole racemic amine Heat...
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:...
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