Please help with these questions, there may be more than 1 correct answer!
Homework Answers
1. 6 unique protons are in the molecule.
2. number of HNMR peaks is exactly equal to the number of unique protons. HNMR spectra give a clear idea about how many unique protons are present in the molecule.
3.add neutral salt like NaCl to water.
NaCl will help to separate out the water dissolved in the organic layer giving a better separation.we can also add a weak base like NaHCO3 to make our unreacted acid to get neutral and to easily solubilize in water.
4. mixture is boiling and the mixture is steaming. both are not signs of refluxing. while refluxing, vapors should condense and return to the system from which vapor is originated.
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Please help with these questions, there may be more than 1
correct answer!
The final product...
I need help with the lab’s question below and H-NMR ASAP. Please explain and show all...
I need help with the lab’s question below and H-NMR ASAP.
Please explain and show all the work. I have posted lab guidelines
as well for the reference.
.nl H20令 9:19 AM X Chemistry 3342 Laboratory Manual Background (Week Two) Equal molar amounts of acid (Y) and alcohol (Y) starting material will be used in the second acid-catalyzed esterification reaction we will complete. When the reaction takes place one molecule or ester and one molecule of water will form, ie.,...
answer questions #1-7 and I'll send more information on question #7. We were unable to transcribe...
answer questions #1-7 and I'll send more information
on question #7.
We were unable to transcribe this imagesolution of a Mixture by Distillation 4 BACKGROUND s one of the most common methods of purifyinga ery simple method: a liquid is brought to a boil, the liquid becomes a gas the gas a liquid. It is a collected returns to the liquid state and the liquid acquire sufficient e from the liquid phase and enter into the s vapor phase Evaporation...
please dont miss the questions 11-4: Aldol - 1 For this assignment, the target compound that...
please dont miss the questions
11-4: Aldol - 1 For this assignment, the target compound that you should synthesize is 2-ethyl-3-hydroxy-hexanal. This is a symmetric aldol reaction. Examine the product and determine which bond may be formed to link the two aldehydes. Keep in mind the mechanism and identify the nucleophile and the electrophile. Synthesis Procedures 1. Start Virtual ChemLab and select Aldol – 1 from the list of assignments on the whiteboard. After entering the synthesis laboratory, use the...
please help me answer the IR, H NMR and 13C NMR questions based on the pictures...
please help me answer the IR, H NMR and 13C NMR questions based
on the pictures below.
IR List the important peaks seen in the IR of the product and label with the associated stretches and bends (eg. C-H stretch, etc). 13C NMR List all the peaks in the 13C NMR and give them each a number. Write the structure of the product and label the carbons with the associated number for the peak. (The peaks from 21-25 can be...
please need help with all the questions and ASAP, thank you 11. Please predict the principle...
please need help with all the questions and ASAP, thank you
11. Please predict the principle organic product of the following reactions, show stereochemistry where appropriate. Note that some reactions involve isotope-labeled compounds, in those cases the correct isotope must be used. (66') 1. LIAID 2. H,O (1) 18 1) THF (2). CH3Li + 2) HaO NaBH4 (3) CH3OD H2(excess)/Pt (4) d herd (5). - Mg Br D2O diethyl ether Br +Li (6) diethyl ether LICu(CH2CHs)2 Br (7). 1. diethyl...
With the data given, help on the calculations please - Tes Name Determination of the Gas...
With the data given, help on the calculations please
- Tes Name Determination of the Gas Constant, R, and the Purity of KCIO, Data Unknown number or letter Mass of test tube and iron (IIT) oxide 44.5928 Mass of test tube, iron (III) oxide and sample 44.979 8 Mass of test tube and contents after heating 44.8488 Volume of water displaced Barometric pressure 976 mbar Temperature of water temperature of O, 23 Vapor pressure of water at this temperature 21.068_mm...
Based on the Wittig Reaction exp. below, please answer a) and b). In b) you can...
Based on the Wittig Reaction exp. below, please answer a) and
b). In b) you can disregard the part about the IR, just please
interpret and assign protons, shift values, which protons are for
which groups, etc on the HNMR. The % yield was 34%, and MP was
lower than expected (to assist with answering part a). This should
be all the information you need to answer the question.
HNMR
Discuss the percentage yield of the reaction. Explain and provide...
I need help with questions 5, 6, & 7. The FTIR and NMR is provided. I...
I need help with questions 5, 6, & 7. The FTIR and NMR is
provided. I also need help creating a reaction mechanism using the
following:
Starting material: 1,7-Dimethyl-heptanedioate
Solvent: Diethyl ether
Reagent: sodium methoxide
Product: 3-oxo-cyclohexane carboxylic acid methyl ester
THANK YOU!!!!!
Ö 11-11: Dieckmann Reaction For this assignment, the target compound that you should synthesize is 2-oxo-cyclohexane carboxylic acid methyl ester.This is an intramolecular carbonyl addition variation. Examine the product and determine which ester is the nucleophile and...
I need help with questions 5, 6, & 7. The FTIR and NMR is provided. I...
I need help with questions 5,
6, & 7. The FTIR and NMR is provided. I also need help creating
a reaction mechanism using the following:
Starting material: methyl acetate.
Solvent: diethyl ether
Reagent: sodium methoxide
Product: methyl acetoacetate
THANK YOU!!!!!
11-8: Claisen Condensation - 1 For this assignment, the target compound that you should synthesize is methyl acetoacetate.This is another carbonyl addition variation. Examine the product and determine which ester is the nucleophile and which is the electrophile. Keep...
Would the methylene chloride layer be above or below the experiment? Justify your answer. 1. aqueous layer in today...
Would the methylene chloride layer be above or below the experiment? Justify your answer. 1. aqueous layer in today's ium carbonate used in the isolation of caffeine? Be specific as to the 2. Why is potass chemical species the carbonate may act on. Why was sodium sulfate used? 3. 4. After introducing 1.0 g of potassium carbonate into the centri hot water extract, it was capped, shaken, and then cooled to room temperature. Following this, roug minute. Why wasn't the...
I need help with the lab’s question below and H-NMR ASAP.
Please explain and show all the work. I have posted lab guidelines
as well for the reference.
.nl H20令 9:19 AM X Chemistry 3342 Laboratory Manual Background (Week Two) Equal molar amounts of acid (Y) and alcohol (Y) starting material will be used in the second acid-catalyzed esterification reaction we will complete. When the reaction takes place one molecule or ester and one molecule of water will form, ie.,...
answer questions #1-7 and I'll send more information
on question #7.
We were unable to transcribe this imagesolution of a Mixture by Distillation 4 BACKGROUND s one of the most common methods of purifyinga ery simple method: a liquid is brought to a boil, the liquid becomes a gas the gas a liquid. It is a collected returns to the liquid state and the liquid acquire sufficient e from the liquid phase and enter into the s vapor phase Evaporation...
please dont miss the questions
11-4: Aldol - 1 For this assignment, the target compound that you should synthesize is 2-ethyl-3-hydroxy-hexanal. This is a symmetric aldol reaction. Examine the product and determine which bond may be formed to link the two aldehydes. Keep in mind the mechanism and identify the nucleophile and the electrophile. Synthesis Procedures 1. Start Virtual ChemLab and select Aldol – 1 from the list of assignments on the whiteboard. After entering the synthesis laboratory, use the...
please help me answer the IR, H NMR and 13C NMR questions based
on the pictures below.
IR List the important peaks seen in the IR of the product and label with the associated stretches and bends (eg. C-H stretch, etc). 13C NMR List all the peaks in the 13C NMR and give them each a number. Write the structure of the product and label the carbons with the associated number for the peak. (The peaks from 21-25 can be...
please need help with all the questions and ASAP, thank you
11. Please predict the principle organic product of the following reactions, show stereochemistry where appropriate. Note that some reactions involve isotope-labeled compounds, in those cases the correct isotope must be used. (66') 1. LIAID 2. H,O (1) 18 1) THF (2). CH3Li + 2) HaO NaBH4 (3) CH3OD H2(excess)/Pt (4) d herd (5). - Mg Br D2O diethyl ether Br +Li (6) diethyl ether LICu(CH2CHs)2 Br (7). 1. diethyl...
With the data given, help on the calculations please
- Tes Name Determination of the Gas Constant, R, and the Purity of KCIO, Data Unknown number or letter Mass of test tube and iron (IIT) oxide 44.5928 Mass of test tube, iron (III) oxide and sample 44.979 8 Mass of test tube and contents after heating 44.8488 Volume of water displaced Barometric pressure 976 mbar Temperature of water temperature of O, 23 Vapor pressure of water at this temperature 21.068_mm...
Based on the Wittig Reaction exp. below, please answer a) and
b). In b) you can disregard the part about the IR, just please
interpret and assign protons, shift values, which protons are for
which groups, etc on the HNMR. The % yield was 34%, and MP was
lower than expected (to assist with answering part a). This should
be all the information you need to answer the question.
HNMR
Discuss the percentage yield of the reaction. Explain and provide...
I need help with questions 5, 6, & 7. The FTIR and NMR is
provided. I also need help creating a reaction mechanism using the
following:
Starting material: 1,7-Dimethyl-heptanedioate
Solvent: Diethyl ether
Reagent: sodium methoxide
Product: 3-oxo-cyclohexane carboxylic acid methyl ester
THANK YOU!!!!!
Ö 11-11: Dieckmann Reaction For this assignment, the target compound that you should synthesize is 2-oxo-cyclohexane carboxylic acid methyl ester.This is an intramolecular carbonyl addition variation. Examine the product and determine which ester is the nucleophile and...
I need help with questions 5,
6, & 7. The FTIR and NMR is provided. I also need help creating
a reaction mechanism using the following:
Starting material: methyl acetate.
Solvent: diethyl ether
Reagent: sodium methoxide
Product: methyl acetoacetate
THANK YOU!!!!!
11-8: Claisen Condensation - 1 For this assignment, the target compound that you should synthesize is methyl acetoacetate.This is another carbonyl addition variation. Examine the product and determine which ester is the nucleophile and which is the electrophile. Keep...
Would the methylene chloride layer be above or below the experiment? Justify your answer. 1. aqueous layer in today's ium carbonate used in the isolation of caffeine? Be specific as to the 2. Why is potass chemical species the carbonate may act on. Why was sodium sulfate used? 3. 4. After introducing 1.0 g of potassium carbonate into the centri hot water extract, it was capped, shaken, and then cooled to room temperature. Following this, roug minute. Why wasn't the...
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