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please help with filling out this table and answering 8
questions
Data Table Br H CH2CH3OH...
Look up and draw the mechanism for the addition of Br2 to double bonds. Reference the...
Look up and draw the mechanism for the addition of Br2 to
double bonds. Reference the source from which you acquired the
mechanism.
Give the IUPAC name of the major product in the above-mentioned
reaction.
Draw the major product of obtained in the addition of Br2 to
stilbene.
Is this isomer chiral? What would be the optical rotation if
this sample was placed in a polarimeter?
Would a student obtain the same product if you started with
cis-stilbene instead of...
number 5 please EXPERIMENT 8: BROMINATION OF TRANS-STILBENE Br3 Br glacial acetic acid Br Objective: Execute...
number
5 please
EXPERIMENT 8: BROMINATION OF TRANS-STILBENE Br3 Br glacial acetic acid Br Objective: Execute first step of two-step sequence to transform an alkene into an alkyne via a dihalide intermediate and use infrared spectros copy to identify functional groups 5. Identify the limiting reagent for the reaction and explain why it is the limiting reagent. PLEASE NOTE: You will need to draw out a Table of Reagents in your notebook to ensure that you know how many moles...
1. (4 pts) Given the masses of meso-stilbene dibromide and potassium hydroxide, please calculate the theoretical...
1. (4 pts) Given the masses of meso-stilbene dibromide and potassium hydroxide, please calculate the theoretical yield of the expected reaction product, diphenylacetylene, in grams. Your final answ appear in the box provided, or it will not be counted. Show all work to receive credit. Br +KOH + KOH Br diphenylacetylene meso-stilbene dibromide Molecular Weight (g/mol) 340.058 g/mol 56.105 g/mol mass (grams) 178.234 g/mol 0.800 g 0.400 g
1. Balance the reaction equation below. Note: consider the equilibrium shown on p. 47 of your...
1. Balance the reaction equation below. Note: consider the equilibrium shown on p. 47 of your lab manual. MOBI pyridinium tribromide E-stilbene meso-stibene dibromide 2. Complete the following table, using your actual measured amounts. Greyed-out cells do not need to be filled. bp MW vol. mass (C) (g/mol) (mL) (mg) mmol equiv E-stilbene 180.25 12.10.28% acetic acid (glacial) 118 Iml pyridinium tribromide 319.82 10.312 meso-stilbene dibromide 236- 237 340.05 0.051 3. Mass of product:_ 0.019 4. mp of product: 290...
please help do theoretical and percent yields Ce the reaction equation below. Note: consider the equilibriugarshown...
please help do theoretical and percent yields
Ce the reaction equation below. Note: consider the equilibriugarshown on p. 42 of your lab manual. Acetic id mesb-Shibanc tribromide o Bra Pyridinium tribromide E-stilbene meso-stibene dibromide step 2 Step 2: +86:0 Stepa. 2. Complete the following table, using your actual measured amounts. Greyed-out cells do not need to be filled. E-stilbene mp bp MW vol mass (°C) (C) (g/mol) (ml) (mg) mmol equiv 122- 180.25 125 ,0560.0032,094 118 IML acetic acid (glacial)...
help with limiting reagents and percent yield needed the reactions are the bromination of cis-stilbene and...
help with limiting reagents and percent yield needed
the
reactions are the bromination of cis-stilbene and trans-stilbene.
The reagents and the moles of each reagent are in my data, as is
the moles of the products formed. The volume and mass of the
reagents are given as well. I need to know how to find the percent
yield and what the limiting reagents are for both the trans and cis
stilbene brominations. The information is there.
Name Physical Properties of...
1) Write a stepwise mechanisms for the bromination of: a) trans-stilbene and b) cis-stilbene (substitute benzene...
1) Write a stepwise mechanisms for the bromination of: a) trans-stilbene and b) cis-stilbene (substitute benzene rings by Ph-notation for convenience; e.g., stilbene could be written as Ph- CH=CH-Ph). I 2) Use (S) and (R) nomenclature to label all stereogenic centers in the above products (each has two stereogenic centers) in problem 1. Identify any enantiomers and meso-products. 3) Complete the following table including formula weights and grams and moles of reagents used in order to calculate a theoretical yield...
please help fill in the white boxes Section: U Date: 4 the reaction equation below. Note:...
please help fill in the white boxes
Section: U Date: 4 the reaction equation below. Note: consider the equilibriugarshown on p. 42 of manual Acetic Acid o meso stilbene tribromide Br pr HB pyridinium tribromide E-stilbene meso-stibene dibromide By ropa: 2. Complete the following table, using your actual measured amounts. Greyed-out cells do not need to be filled. mp (°C) 122- 125 bp MW vol mass ass mmol equiv (C) (g/mol) (ml) (mg) 180.25 E-stilbene 123 acetic acid (glacial) 118...
number 5 please EXPERIMENT 8: BROMINATION OF TRANS-STILBENE glacial acetic acid Objective: Execute first step of...
number
5 please
EXPERIMENT 8: BROMINATION OF TRANS-STILBENE glacial acetic acid Objective: Execute first step of two-step sequence to transform an alkene into an alkyne via a dihalide intermediate and use infrared spectroscopy to identify functional groups 5. Identify the limiting reagent for the reaction and explain why it is the limiting reagent. PLEASE NOTE: You will need to draw out a Table of Reagents in your notebook to ensure that you know how many moles of each reagent you...
please help with number 6! 1.(2) What is the meaning of “E” in E-stilbene? 2.(4) What...
please help with number 6!
1.(2) What is the meaning of “E” in E-stilbene? 2.(4) What functional groups are present in E-stilbene? 3.(2) Write the reaction that occurs between E-stilbene and bromine. 4.(4) Write the mechanism for the addition of bromine to €- stilbene to give meso-stilbene dibromide via the intermediate cyclic bromonium ion. 5.(2) Which reagent, E-sitlbene or bromine, acts as the nucleophile in this reaction? Which reagent is the electrophile? 6.(4) Calculate the theoretical yield of meso-stilbene dibromide...
Look up and draw the mechanism for the addition of Br2 to
double bonds. Reference the source from which you acquired the
mechanism.
Give the IUPAC name of the major product in the above-mentioned
reaction.
Draw the major product of obtained in the addition of Br2 to
stilbene.
Is this isomer chiral? What would be the optical rotation if
this sample was placed in a polarimeter?
Would a student obtain the same product if you started with
cis-stilbene instead of...
number
5 please
EXPERIMENT 8: BROMINATION OF TRANS-STILBENE Br3 Br glacial acetic acid Br Objective: Execute first step of two-step sequence to transform an alkene into an alkyne via a dihalide intermediate and use infrared spectros copy to identify functional groups 5. Identify the limiting reagent for the reaction and explain why it is the limiting reagent. PLEASE NOTE: You will need to draw out a Table of Reagents in your notebook to ensure that you know how many moles...
1. (4 pts) Given the masses of meso-stilbene dibromide and potassium hydroxide, please calculate the theoretical yield of the expected reaction product, diphenylacetylene, in grams. Your final answ appear in the box provided, or it will not be counted. Show all work to receive credit. Br +KOH + KOH Br diphenylacetylene meso-stilbene dibromide Molecular Weight (g/mol) 340.058 g/mol 56.105 g/mol mass (grams) 178.234 g/mol 0.800 g 0.400 g
1. Balance the reaction equation below. Note: consider the equilibrium shown on p. 47 of your lab manual. MOBI pyridinium tribromide E-stilbene meso-stibene dibromide 2. Complete the following table, using your actual measured amounts. Greyed-out cells do not need to be filled. bp MW vol. mass (C) (g/mol) (mL) (mg) mmol equiv E-stilbene 180.25 12.10.28% acetic acid (glacial) 118 Iml pyridinium tribromide 319.82 10.312 meso-stilbene dibromide 236- 237 340.05 0.051 3. Mass of product:_ 0.019 4. mp of product: 290...
please help do theoretical and percent yields
Ce the reaction equation below. Note: consider the equilibriugarshown on p. 42 of your lab manual. Acetic id mesb-Shibanc tribromide o Bra Pyridinium tribromide E-stilbene meso-stibene dibromide step 2 Step 2: +86:0 Stepa. 2. Complete the following table, using your actual measured amounts. Greyed-out cells do not need to be filled. E-stilbene mp bp MW vol mass (°C) (C) (g/mol) (ml) (mg) mmol equiv 122- 180.25 125 ,0560.0032,094 118 IML acetic acid (glacial)...
help with limiting reagents and percent yield needed
the
reactions are the bromination of cis-stilbene and trans-stilbene.
The reagents and the moles of each reagent are in my data, as is
the moles of the products formed. The volume and mass of the
reagents are given as well. I need to know how to find the percent
yield and what the limiting reagents are for both the trans and cis
stilbene brominations. The information is there.
Name Physical Properties of...
1) Write a stepwise mechanisms for the bromination of: a) trans-stilbene and b) cis-stilbene (substitute benzene rings by Ph-notation for convenience; e.g., stilbene could be written as Ph- CH=CH-Ph). I 2) Use (S) and (R) nomenclature to label all stereogenic centers in the above products (each has two stereogenic centers) in problem 1. Identify any enantiomers and meso-products. 3) Complete the following table including formula weights and grams and moles of reagents used in order to calculate a theoretical yield...
please help fill in the white boxes
Section: U Date: 4 the reaction equation below. Note: consider the equilibriugarshown on p. 42 of manual Acetic Acid o meso stilbene tribromide Br pr HB pyridinium tribromide E-stilbene meso-stibene dibromide By ropa: 2. Complete the following table, using your actual measured amounts. Greyed-out cells do not need to be filled. mp (°C) 122- 125 bp MW vol mass ass mmol equiv (C) (g/mol) (ml) (mg) 180.25 E-stilbene 123 acetic acid (glacial) 118...
number
5 please
EXPERIMENT 8: BROMINATION OF TRANS-STILBENE glacial acetic acid Objective: Execute first step of two-step sequence to transform an alkene into an alkyne via a dihalide intermediate and use infrared spectroscopy to identify functional groups 5. Identify the limiting reagent for the reaction and explain why it is the limiting reagent. PLEASE NOTE: You will need to draw out a Table of Reagents in your notebook to ensure that you know how many moles of each reagent you...
please help with number 6!
1.(2) What is the meaning of “E” in E-stilbene? 2.(4) What functional groups are present in E-stilbene? 3.(2) Write the reaction that occurs between E-stilbene and bromine. 4.(4) Write the mechanism for the addition of bromine to €- stilbene to give meso-stilbene dibromide via the intermediate cyclic bromonium ion. 5.(2) Which reagent, E-sitlbene or bromine, acts as the nucleophile in this reaction? Which reagent is the electrophile? 6.(4) Calculate the theoretical yield of meso-stilbene dibromide...
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