Homework Answers
The best way to force the acetal formation equilibrium towards the product acetal is REMOVAL OF WATER AS SOON AS IT FORMS by using Dean-startk apparatus(commonly used).
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The acetal reaction equilibrium favours the starting materials when a 1:1 ratio of reactants is used...
Which of the following about equilibrium constant of a reaction are true. It can change if...
Which of the following about equilibrium constant of a reaction are true. It can change if the concentration of reactants and products are changed. It can be used to calculate the biochemical standard free energy change (Delta G degree). It can be used to calculate the actual free energy change (Delta G). It is the same as the mass action ratio (Q) when the reaction is in equilibrium. It is always a constant regardless of temperature change. Which of these...
Can you help me identify reagent (i), Compound 8 and Compound 12 in the reaction scheme?...
Can you help me identify reagent (i), Compound 8 and
Compound 12 in the reaction scheme?
You have laboratory data on all the compounds in the
synthesis, however the amount of data available to you varies. Some
have the entirety of the spectral data, others have as little as
the elemental analysis. Use the laboratory data to help you
discover which reaction has been performed.
The lab data for Compound 8 and 12 is as
follows:
You can use any...
U Question 27 3 pts Suppose that the following endothermic reaction is at equilibrium: 2 CO()...
U Question 27 3 pts Suppose that the following endothermic reaction is at equilibrium: 2 CO() +0,6) 2 CO, Which of the following changes would cause the reaction to shift toward products? Increase the temperature. o Remove COX. Add a catalyst Increase the volume of the container D Question 28 3 pts The following pictures represent equal volumes of aqueous solutions of three acids HA A EXY or Z: water molecules have been omitted for clarity Which is the strongest...
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.,...
Question 1 Match each reagent with its role in aldol condensation reaction. Not yet answered D-anisaldehyde...
Question 1 Match each reagent with its role in aldol condensation reaction. Not yet answered D-anisaldehyde Choose... Points out of 10.00 dium hydroxide Choose... P Flag question acetophenone Choose... ethanol Choose... Question 2 Not yet answered To purify the aldol condensation product you will have to recrystallize it from methanol. Give the steps in recrystallization procedure the appropriate order numbering. Points out of 10.00 The compound is kept under vacuum for 10 min Choose... + P Flag question The solution...
Give a detailed mechanism for this reaction and give a separation scheme NUCLEOPHILIC ACYL SUBSTITUTION: Synthesis...
Give a detailed mechanism for this reaction and give a separation
scheme
NUCLEOPHILIC ACYL SUBSTITUTION: Synthesis of an Ester Isoamyl acetate (Banana Oil) Purpose This experiment demonstrat and alcohol. The technique of refluxing the reaction mixture is introduced. es the procedure for the synthesis of an ester from a carboxylic acid Esters are an important functional group in organic chemistry, and esters are found widely distributed in nature. Many lower molecular weight esters are associated with natural fuit flavors and...
Make sure the reaction table described above is completed in your notebook.
Prelab questions:1. Make sure the reaction table described above is completed in your notebook.2. Two benzaldehyde molecules combine with one acetone molecule in this aldol reaction. If someone uses 5.0 mL of benzaldehyde and 2.5 mL of acetone to try to improve the yield of product, is this the correct ratio of molecules so that there is no excess? Why or why not?The Aldol Reaction: Synthesis of DibenzalacetonePurpose: Introduce the student to the hands-on chemistry of carbonyl condensations.Warning: Dispose of...
CHROMIC ACID OXIDATION Pre Lab Questions the amounts of materials that will be used from the...
CHROMIC ACID OXIDATION Pre Lab Questions the amounts of materials that will be used from the experimental section above) H2SO4 + Na2Cr207 2H20- H2O, A Molecular Weight Theoretical yield amount moles on (if applicable) Equivalents 2. Look up the melting point for p-nitrobenzoic acid and record the reference. 3. What color change is expected to be observed in the reaction? Explain why. CHROMIC ACID OXIDATION Experimental Procedure: Part I: Synthesis of p-nitrobenzoic Acid 1. Under the hood, add 0.400 g...
What is the theorectical yeild for step 1 and step 3? - Step 1 has 0.76g...
What is the theorectical yeild for step 1 and step 3?
- Step 1 has 0.76g of ortho-vanillin and 0.535g of
para-toludine.
-step 3 has 2ml of glacial acetic acid and 2ml of acetic
anhydride. it gets warms and 75ml of water is added
Step 1: Synthesis of 2-methoxy-6-(p-tolyliminomethyl)-phenol: Imine formation Weigh a 250 mL beaker and then add 0.76 grams (5 mmol) of ortho-vanillin to one side of the beaker. Record the total mass of the beaker plus the...
1. Read about electrophilic aromatic substitutions reactions in general. You need to be familiar with the...
1. Read about electrophilic aromatic substitutions reactions in general. You need to be familiar with the mechanism. Louden text (if using) Chapter 16 sections 16.4 and 16.5. Ask your lecture professor which chapters this correlates to if you are using a different text. 2. Write the structure, hazards, and molecular weight for all the reactants and products. Table 1. Chemical Information for Reactants and Products. Compound MW (g/mol) Density (g/mL) Hazrads nitric acid 63.01 1.513 corrosive, oxidizer Sulfuric acid 98.075...
Which of the following about equilibrium constant of a reaction are true. It can change if the concentration of reactants and products are changed. It can be used to calculate the biochemical standard free energy change (Delta G degree). It can be used to calculate the actual free energy change (Delta G). It is the same as the mass action ratio (Q) when the reaction is in equilibrium. It is always a constant regardless of temperature change. Which of these...
Can you help me identify reagent (i), Compound 8 and
Compound 12 in the reaction scheme?
You have laboratory data on all the compounds in the
synthesis, however the amount of data available to you varies. Some
have the entirety of the spectral data, others have as little as
the elemental analysis. Use the laboratory data to help you
discover which reaction has been performed.
The lab data for Compound 8 and 12 is as
follows:
You can use any...
U Question 27 3 pts Suppose that the following endothermic reaction is at equilibrium: 2 CO() +0,6) 2 CO, Which of the following changes would cause the reaction to shift toward products? Increase the temperature. o Remove COX. Add a catalyst Increase the volume of the container D Question 28 3 pts The following pictures represent equal volumes of aqueous solutions of three acids HA A EXY or Z: water molecules have been omitted for clarity Which is the strongest...
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.,...
Question 1 Match each reagent with its role in aldol condensation reaction. Not yet answered D-anisaldehyde Choose... Points out of 10.00 dium hydroxide Choose... P Flag question acetophenone Choose... ethanol Choose... Question 2 Not yet answered To purify the aldol condensation product you will have to recrystallize it from methanol. Give the steps in recrystallization procedure the appropriate order numbering. Points out of 10.00 The compound is kept under vacuum for 10 min Choose... + P Flag question The solution...
Give a detailed mechanism for this reaction and give a separation
scheme
NUCLEOPHILIC ACYL SUBSTITUTION: Synthesis of an Ester Isoamyl acetate (Banana Oil) Purpose This experiment demonstrat and alcohol. The technique of refluxing the reaction mixture is introduced. es the procedure for the synthesis of an ester from a carboxylic acid Esters are an important functional group in organic chemistry, and esters are found widely distributed in nature. Many lower molecular weight esters are associated with natural fuit flavors and...
CHROMIC ACID OXIDATION Pre Lab Questions the amounts of materials that will be used from the experimental section above) H2SO4 + Na2Cr207 2H20- H2O, A Molecular Weight Theoretical yield amount moles on (if applicable) Equivalents 2. Look up the melting point for p-nitrobenzoic acid and record the reference. 3. What color change is expected to be observed in the reaction? Explain why. CHROMIC ACID OXIDATION Experimental Procedure: Part I: Synthesis of p-nitrobenzoic Acid 1. Under the hood, add 0.400 g...
What is the theorectical yeild for step 1 and step 3?
- Step 1 has 0.76g of ortho-vanillin and 0.535g of
para-toludine.
-step 3 has 2ml of glacial acetic acid and 2ml of acetic
anhydride. it gets warms and 75ml of water is added
Step 1: Synthesis of 2-methoxy-6-(p-tolyliminomethyl)-phenol: Imine formation Weigh a 250 mL beaker and then add 0.76 grams (5 mmol) of ortho-vanillin to one side of the beaker. Record the total mass of the beaker plus the...
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