A student is given .462 ml of cis-stillbene. Following the bromination reaction, the student obtained 0.767...
A student is given .462 ml of cis-stillbene. Following the bromination reaction, the student obtained 0.767 g of product (MW=340.05 g/mol). Calculate the theoretical and percent yields of the reaction assuming cis-stillbene is the limiting reagent. Show all steps of your calculations and include all units.
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A student is given .462 ml of cis-stillbene. Following the
bromination reaction, the student obtained 0.767...
2 dibenzalacetone acetone benzaldehyde MW- 106.13 g/mol bp-1 78°C d 1.04 g/mL MW 234.30 g/mol mp #110-1110 MW-58.08 g/mol bp 56°C d 0.79 g/mL Its bs Reaction Setup (3 pts) S. OS Initial quant...
2 dibenzalacetone acetone benzaldehyde MW- 106.13 g/mol bp-1 78°C d 1.04 g/mL MW 234.30 g/mol mp #110-1110 MW-58.08 g/mol bp 56°C d 0.79 g/mL Its bs Reaction Setup (3 pts) S. OS Initial quantity of NaOH: S. I Initial quantity of benzaldehyde: mL Initial quantity of acetone: mL Theoretical yield of dibenzalacetone based on benzaldehyde: (show calculations) Theoretical yield of dibenzalacetone based on acetone 9 (show calculations) ce tone Limiting Reagent: Product Data (10 pts) fivAL Mass: 3.3g Percent Yield:...
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...
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...
Using the reaction shown below, calculate the percent yield obtained by a student when reacting 5.0 g of 3-methoxysalicylic acid with 3.9 mL of iodomethane in the presence of 10.3 g of potassium carbonate and obtaining 4.5 g of product, 2,3-dimethoxymethy
Using the reaction shown below, calculate the percent yield obtained by a student when reacting 5.0 g of 3-methoxysalicylic acid with 3.9 mL of iodomethane in the presence of 10.3 g of potassium carbonate and obtaining 4.5 g of product, 2,3-dimethoxymethyl benzoate. You should determine which of the three reactants is the limiting reagent and the theoretical yield first.1a page 1.jpg
can someone help please!!! REPORT FORM: REGIOSELECTIVE BROMINATION OF ACETANILIDE Balanced Equation(s) for Main Reaction(s): Brz...
can someone help please!!!
REPORT FORM: REGIOSELECTIVE BROMINATION OF ACETANILIDE Balanced Equation(s) for Main Reaction(s): Brz Hjc Coche 4 И В Balanced Equation(s) for Important Side Reactions): compound MW mg or ml mmol acetanilide B5.17 95 mg 6. 25 ml bromine 159.22 p-bromoacetanilide 214.07 Indicate the limiting reagent with an asterisk (*). Product Observed melting point range: 160.0.4480 Literature melting point range:167.169 °C Molecular weight of product: 214.07 Theoretical yield: Experimental yield: g Percent yield: 95 %
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 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)...
2. Calculate the limiting reagent, theoretical vield. and percent yield of the following reaction. (6 pts)...
2. Calculate the limiting reagent, theoretical vield. and percent yield of the following reaction. (6 pts) NaOH / H20 H + 5.2 g MW: 106.12 g/mol H3C CH3 1.3 g MW: 58.08 g/mol 3.0 g MW: 234 g/mol
2. Calculate the limiting reagent, theoretical yield, and percent yield of the following reaction. (6 pts)...
2. Calculate the limiting reagent, theoretical yield, and percent yield of the following reaction. (6 pts) o= NaOH/H20 5.2 g MW: 106.12 g/mol H3C CH3 1.3 g MW: 58.08 g/mol 3.0 g MW: 234 g/mol
2. Calculate the limiting reagent, theoretical yield, and percent yield of the following reaction. (6 pts)...
2. Calculate the limiting reagent, theoretical yield, and percent yield of the following reaction. (6 pts) NAOH / H20 2 CHз Нас 3.0 g 1.3 g 5.2 g MW: 234 g/mol MW: 58.08 g/mol MW: 106.12 g/mol
2 dibenzalacetone acetone benzaldehyde MW- 106.13 g/mol bp-1 78°C d 1.04 g/mL MW 234.30 g/mol mp #110-1110 MW-58.08 g/mol bp 56°C d 0.79 g/mL Its bs Reaction Setup (3 pts) S. OS Initial quantity of NaOH: S. I Initial quantity of benzaldehyde: mL Initial quantity of acetone: mL Theoretical yield of dibenzalacetone based on benzaldehyde: (show calculations) Theoretical yield of dibenzalacetone based on acetone 9 (show calculations) ce tone Limiting Reagent: Product Data (10 pts) fivAL Mass: 3.3g Percent Yield:...
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...
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...
can someone help please!!!
REPORT FORM: REGIOSELECTIVE BROMINATION OF ACETANILIDE Balanced Equation(s) for Main Reaction(s): Brz Hjc Coche 4 И В Balanced Equation(s) for Important Side Reactions): compound MW mg or ml mmol acetanilide B5.17 95 mg 6. 25 ml bromine 159.22 p-bromoacetanilide 214.07 Indicate the limiting reagent with an asterisk (*). Product Observed melting point range: 160.0.4480 Literature melting point range:167.169 °C Molecular weight of product: 214.07 Theoretical yield: Experimental yield: g Percent yield: 95 %
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 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)...
2. Calculate the limiting reagent, theoretical vield. and percent yield of the following reaction. (6 pts) NaOH / H20 H + 5.2 g MW: 106.12 g/mol H3C CH3 1.3 g MW: 58.08 g/mol 3.0 g MW: 234 g/mol
2. Calculate the limiting reagent, theoretical yield, and percent yield of the following reaction. (6 pts) o= NaOH/H20 5.2 g MW: 106.12 g/mol H3C CH3 1.3 g MW: 58.08 g/mol 3.0 g MW: 234 g/mol
2. Calculate the limiting reagent, theoretical yield, and percent yield of the following reaction. (6 pts) NAOH / H20 2 CHз Нас 3.0 g 1.3 g 5.2 g MW: 234 g/mol MW: 58.08 g/mol MW: 106.12 g/mol
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