Suppose a student started with 133.0 mg of trans-cinnamic acid, 443 mg of pyridinium tribromide, and...
Suppose a student started with 133.0 mg of trans-cinnamic acid, 443 mg of pyridinium tribromide, and 2.60 mL of glacial acetic acid. After the reaction and workup, the student ended up with 0.1683 g of brominated product. Calculate the student\'s theoretical and percent yields.
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Suppose a student started with 133.0 mg of trans-cinnamic acid,
443 mg of pyridinium tribromide, and...
0.8002 g of (E)-cinnamic acid, 10 mL of glacial acetic acid and 1.7610g of pyridinium tribromide...
0.8002 g of (E)-cinnamic acid, 10 mL of glacial acetic acid and 1.7610g of pyridinium tribromide was heated under reflux to demonstrate the bromination of (E)-cinnamic acid. The mass of the final product was 3.4143 g and the melting point range was 175.4-203.4 ℃. What is the theoretical yield, actual yield, percent yield? Please show work! (Pyridinium tribromide and cinnamic reaction react in a 1:1 ratio).
What is the theoretical yield of 1mmol of trans cinnamic acid+1.2 mmols of pyridinium tribromide and...
What is the theoretical yield of 1mmol of trans cinnamic acid+1.2 mmols of pyridinium tribromide and what product is made? please note in this reaction acetic acid is added making me believe it is a catalyst.
An Alkene addition is being performed. The reactants are .1504 g of trans-cinnamic acid and .3843...
An Alkene addition is being performed. The reactants are .1504 g of trans-cinnamic acid and .3843 g of pyridinium tribromide, these components heated and are reacted within 2 mL of glacial acetic acid to produce 2,3-dibromo-3-phenylpropanoic acid. How much of this final product would theoretically be produced? Would the product be majority threo or erythro?
Pre-Laboratory Assignment 1. What safety precautions must be observed when using (a) pyridinium tribromide? (b) acetic...
Pre-Laboratory Assignment 1. What safety precautions must be observed when using (a) pyridinium tribromide? (b) acetic acid? 2. Calculate the theoretical yield for the bromination of both stilbenes and cinamic acid, assuming the presence of excess pyridinium tribromide. Note the theoretical yields here and in your laboratory notebook 3. Draw the mechanism, including the intermediate bromonium ion, generated in the bromination of trans-2-butene. 4. (a) Look up and draw structures for cinnamic acid, cis-stilbene, and trans-stilbene. (b) Predict the relative...
2. Cover Page Questions 2.1. Draw the chemical structures of cinnamic acid, pyridinium tribromide and acetic...
2. Cover Page Questions 2.1. Draw the chemical structures of cinnamic acid, pyridinium tribromide and acetic acid. Draw the reaction equation of the chemicals. (3 points) 2.2. What is the anti-addition reaction? Discuss the difference in the conformation of the resultant di-vicinal brominated compounds of cyclic alkenes and acyclic alkenes in the anti-addition reaction List the examples of the anti-addition bromination reaction of the cyclic and acyclic alkenes. (4 points)
Bromunation of trans-Cinnamic Acid Show the calculations for the theoretical yield (in grams) of the diromide...
Bromunation of trans-Cinnamic Acid Show the calculations for the theoretical yield (in grams) of the diromide product). There are 0.017 mol of Cinnamic Acid and 0.020 mol of Pyridinium Tribromide.
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)...
here is the procedure if needed EXPERIMENT 8: BROMINATION OF TRANS-STILBENE glacial acetic acid Objective: Execute...
here is the procedure if needed
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 PRELAB NOTEBOOK: In the laboratory notebook, write the overall experimental objective, chemical equation(s), reaction mechanism (consider all possible stereoisomers), draw a diagram or outline of the procedural steps, and complete the chemical safety table for all chemicals. 1. Why is...
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...
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...
Pre-Laboratory Assignment 1. What safety precautions must be observed when using (a) pyridinium tribromide? (b) acetic acid? 2. Calculate the theoretical yield for the bromination of both stilbenes and cinamic acid, assuming the presence of excess pyridinium tribromide. Note the theoretical yields here and in your laboratory notebook 3. Draw the mechanism, including the intermediate bromonium ion, generated in the bromination of trans-2-butene. 4. (a) Look up and draw structures for cinnamic acid, cis-stilbene, and trans-stilbene. (b) Predict the relative...
2. Cover Page Questions 2.1. Draw the chemical structures of cinnamic acid, pyridinium tribromide and acetic acid. Draw the reaction equation of the chemicals. (3 points) 2.2. What is the anti-addition reaction? Discuss the difference in the conformation of the resultant di-vicinal brominated compounds of cyclic alkenes and acyclic alkenes in the anti-addition reaction List the examples of the anti-addition bromination reaction of the cyclic and acyclic alkenes. (4 points)
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)...
here is the procedure if needed
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 PRELAB NOTEBOOK: In the laboratory notebook, write the overall experimental objective, chemical equation(s), reaction mechanism (consider all possible stereoisomers), draw a diagram or outline of the procedural steps, and complete the chemical safety table for all chemicals. 1. Why is...
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...
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...
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