Homework Answers
Add Answer to:
please identify the unknown and write a derivative
Unknown compound 3 Clear liquid Physcial Properties Solubility...
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...
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...
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...
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...
What is the amt of ammonium chloride solution, ether for extraction, brine for extraction and MgSO4 needed. Please s...
What is the amt of ammonium chloride solution, ether
for extraction, brine for extraction and MgSO4 needed. Please show
calculations!
Suggestion: Weigh the sucrose directly into a flask. Measule uut liie Wutur using a measuring cylinder. Weigh out the ethyl acetoacetate and add by pipet Reduction using Sodium Borohydride Weigh ethyl acetoacetate (1.5 g) into a round bottomed flask. Add ethanol (15 mL) to dissolve it. Add a magnetic stir bar and fit the flask with a drying tube. Cool...
Bromination of Acetanilide In a 25-mL Erlenmeyer flask, dissolve 0.68 g of acetanilide in approximately 4...
Bromination of Acetanilide In a 25-mL Erlenmeyer flask, dissolve 0.68 g of acetanilide in approximately 4 mL glacial acetic acid. Record the exact amount of the limiting reactant that you used. Add a stir bar followed by 1.6 g pyridinium tribromide. Heat the mixture to ~60°C in a warm water bath for 10 minutes. After the 10 minutes, add 15 mL water and approximately 2 mL saturated sodium bisulfite solution to remove excess bromine, which shows by the disappearance of...
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...
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...
i need help with #3 please! SAFETY NOTES: Bromobenene and acetophenone are irritants. Wear gloves and...
i need help with #3 please!
SAFETY NOTES: Bromobenene and acetophenone are irritants. Wear gloves and avoid contact with skin, eyes, and clothing • MHC) is dritating to the skin avoid contact with the skin, eyes, and clothing Diethyl ether, usually referred to simply as "ether", is volatile and flammable. Keep a safe distance from hot electrical devices WASTE DISPOSAL *** A itrate is the liquid that passed through the Hirsch funnel, ending up in the bottom of the sidearm...
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...
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...
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...
What is the amt of ammonium chloride solution, ether
for extraction, brine for extraction and MgSO4 needed. Please show
calculations!
Suggestion: Weigh the sucrose directly into a flask. Measule uut liie Wutur using a measuring cylinder. Weigh out the ethyl acetoacetate and add by pipet Reduction using Sodium Borohydride Weigh ethyl acetoacetate (1.5 g) into a round bottomed flask. Add ethanol (15 mL) to dissolve it. Add a magnetic stir bar and fit the flask with a drying tube. Cool...
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...
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...
i need help with #3 please!
SAFETY NOTES: Bromobenene and acetophenone are irritants. Wear gloves and avoid contact with skin, eyes, and clothing • MHC) is dritating to the skin avoid contact with the skin, eyes, and clothing Diethyl ether, usually referred to simply as "ether", is volatile and flammable. Keep a safe distance from hot electrical devices WASTE DISPOSAL *** A itrate is the liquid that passed through the Hirsch funnel, ending up in the bottom of the sidearm...
Most questions answered within 3 hours.
-
1. Which of the following is nottrue of
necrotizing fasciitis?
All of the above are true....
asked 4 minutes ago -
Magnesium atoms undergo a transition with a wavelength of 285.2 nm.
Calculate the velocity and frequency...
asked 7 minutes ago -
MARKETING QUESTION (b2b,b2C)
Identify a recent major purchase that you made recently.
How did you recognize...
asked 10 minutes ago -
Write a JAVA program that prints the contents of a file to the
console. On each...
asked 26 minutes ago -
The solid acid is dissolved in 100 mL of deionized water,
followed by 10 mL of...
asked 29 minutes ago -
assume force on an arrow in a stretched bow F=-kx^3/2, where x is
the positionbowstring is...
asked 35 minutes ago -
The management of Lanzilotta Corporation is considering a
project that would require an investment of $270,000...
asked 49 minutes ago -
According to the article by James Moore, what are the emerging
areas mentioned as candidates for...
asked 51 minutes ago -
Read and conduct a critical analysis of postings. analysis of
the posting should be written to...
asked 53 minutes ago -
create two subclasses called outpatient and inpatient
which inherit from the patient base class
asked 57 minutes ago -
Balanced chemical equations, which represent reactions, include
coefficients that describe the ratio between the reactants and...
asked 1 hour ago -
An 14.3-kg stone at the end of a steel (Young's modulus 2.0 x
1011 N/m2) wire...
asked 1 hour ago