In the Claisen -Schmidt reaction 0.123g of acetone + 0.452g of benzaldehyde are added to make...
In the Claisen -Schmidt reaction 0.123g of acetone + 0.452g of benzaldehyde are added to make 0.225g of dibenzalacetone. What is the limiting reagent, theoretical and percent yield? And also how the starting material and product are characterized by nmr spectroscopy.
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In the Claisen -Schmidt reaction 0.123g of acetone + 0.452g of
benzaldehyde are added to make...
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:...
find limiting reagent? acetone 3.63 mL benzaldehyde 10.5mL bp (°C) mol. wt. (g/mole) 58.08 density (g/mL)...
find limiting reagent?
acetone 3.63 mL
benzaldehyde 10.5mL
bp (°C) mol. wt. (g/mole) 58.08 density (g/mL) 0.791 56 106.23 178-179 1.044 Acetone Benzaldehyde NaOH Dibenzalacetone 40.00 234.30 mp 110-111 9. Calculations for synthesis-moles of reactants, limiting reagent, theoretical yield , % experimental yield, show all math
Question 8 1 pts NAOH BOHO acetone d 0.791 benzaldehyde d 1.044 When doing part of...
Question 8 1 pts NAOH BOHO acetone d 0.791 benzaldehyde d 1.044 When doing part of the reaction for lab, how many grams of benzaldehyde (#4) would you need if you are trying to make a maximum theoretical yield of 10 grams of dibenzalacetone (#6)? Acetone: density = 0.791 g/mL and molar mass = 58.08 grams/mole Benzaldehyde: density - 1.044 g/mL and molar mass = 106.12 grams/mole Dibenzalacetone: molar mass = 234.29 grams/mole
8 2 H NaOH Еюн 5 benzaldehyde d 1.044 acetone d0.791 When doing part B of the reaction for lab, how many grams of b...
8 2 H NaOH Еюн 5 benzaldehyde d 1.044 acetone d0.791 When doing part B of the reaction for lab, how many grams of benzaldehyde (#4) would you need if you are trying to make a maximum theoretical yield of 15 grams of dibenzalacetone (#6)? Acetone: density 0.791 g/mL and molar mass 58.08 grams/mole Benzaldehyde: density 1.044 g/mL and molar mass 106.12 grams/mole Dibenzalacetone: molar mass = 234.29 grams/mole Enter answer.... со
1 pts Question 7 2 H NaOH EOH benzaldehyde d 1.044 acetone d 0.791 When doing...
1 pts Question 7 2 H NaOH EOH benzaldehyde d 1.044 acetone d 0.791 When doing part B of the reaction for lab, how many grams of acetone (#5) would you need if you are trying to make a maximum theoretical yield of 15 grams of dibenzalacetone (#6)? Acetone: density 0.791 g/mL and molar mass 58.08 grams/mole 1044 g/mL and molar mass 106.12 grams/mole Benzaldehyde: density Dibenzalacetone: molar mass 234.29 grams/mole
COLEMAS CRUNCIS Compound Mass M.W. Quantity in moles M.p. range or b.p. (°C) (g/mol) 106.13 Benzaldehyde...
COLEMAS CRUNCIS Compound Mass M.W. Quantity in moles M.p. range or b.p. (°C) (g/mol) 106.13 Benzaldehyde 0.212 0.00199755 Acetone 0.058 58.08 0.00099862 Dibenzalacetone 0.053 234.20 0.0002263 Lit: 110-111°C Actual: 75-80 Calculations of theoretical yield (based on limiting reagent) and crude and pure % yield: (4 prs
1. (15 points) A student in an organic ch points) A student in an organic chemistry...
1. (15 points) A student in an organic ch points) A student in an organic chemistry lab prepared dibenzalacetone according to the following chemical res following chemical reaction using excess base. It is important that the molar ratio of the reactants in this reaction be 2:1. NaOll heat (-2 ,0) 234.30 g/mol 58.08 g/mol 106.23 g/mol a) If the student started with 1.06 g of benzaldehyde and 0.29 g of acetone, what is the theoretical yield of the product? b)...
1. On development of the TLC plates for ortho- and para-nitroaniline, which isomer travelled faster? Why?...
1. On development of the TLC plates for ortho- and para-nitroaniline, which isomer travelled faster? Why? What was the solvent? What is the thin layer made of? (4 pts) 2. 1.000 grams of acetone was reacted with 3.651 grams of benzaldehyde in a mixture of water and ethanol and an excess NaOH. The isolated dibenzalacetone product was 2.015 grams. What was the limiting factor? What is the structural formula of the product? What was the yield as percent of theoretical?...
What is the limiting reagent and theoretical yield? (please show work step by step with units)...
What is the limiting reagent and theoretical yield? (please show work step by step with units) This is an aldol reaction with acetone, benzaldehyde, NaOH (5M in 25 mL solution = 5g), and an ethanol solvent. There is a 2:1 ratio of benzaldehyde and acetone. 3g of acetone which I calculated to be .05 moles . Since it was 2:1 I assumed that meant there needed to be 0.10 moles of benzaldehyde that I calculated to be 10.16 g.
Weeks 48 5: Hydrogenation of methyl oleate to give methyl stearate . Understand the reaction stoichiometry...
Weeks 48 5: Hydrogenation of methyl oleate to give methyl stearate . Understand the reaction stoichiometry for this lab, including balanced equation. Is Pd/C consumed in the reaction? How is H2 gas generated, and is it stoichiometric or catalytic in this reaction? Be able to identify limiting reagent, calculate theoretical and percent yield. . Why is the starting material an oil, while the product is solid (if pure)? Understand the intermolecular forces involved, and how these are different for the...
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:...
find limiting reagent?
acetone 3.63 mL
benzaldehyde 10.5mL
bp (°C) mol. wt. (g/mole) 58.08 density (g/mL) 0.791 56 106.23 178-179 1.044 Acetone Benzaldehyde NaOH Dibenzalacetone 40.00 234.30 mp 110-111 9. Calculations for synthesis-moles of reactants, limiting reagent, theoretical yield , % experimental yield, show all math
Question 8 1 pts NAOH BOHO acetone d 0.791 benzaldehyde d 1.044 When doing part of the reaction for lab, how many grams of benzaldehyde (#4) would you need if you are trying to make a maximum theoretical yield of 10 grams of dibenzalacetone (#6)? Acetone: density = 0.791 g/mL and molar mass = 58.08 grams/mole Benzaldehyde: density - 1.044 g/mL and molar mass = 106.12 grams/mole Dibenzalacetone: molar mass = 234.29 grams/mole
8 2 H NaOH Еюн 5 benzaldehyde d 1.044 acetone d0.791 When doing part B of the reaction for lab, how many grams of benzaldehyde (#4) would you need if you are trying to make a maximum theoretical yield of 15 grams of dibenzalacetone (#6)? Acetone: density 0.791 g/mL and molar mass 58.08 grams/mole Benzaldehyde: density 1.044 g/mL and molar mass 106.12 grams/mole Dibenzalacetone: molar mass = 234.29 grams/mole Enter answer.... со
1 pts Question 7 2 H NaOH EOH benzaldehyde d 1.044 acetone d 0.791 When doing part B of the reaction for lab, how many grams of acetone (#5) would you need if you are trying to make a maximum theoretical yield of 15 grams of dibenzalacetone (#6)? Acetone: density 0.791 g/mL and molar mass 58.08 grams/mole 1044 g/mL and molar mass 106.12 grams/mole Benzaldehyde: density Dibenzalacetone: molar mass 234.29 grams/mole
COLEMAS CRUNCIS Compound Mass M.W. Quantity in moles M.p. range or b.p. (°C) (g/mol) 106.13 Benzaldehyde 0.212 0.00199755 Acetone 0.058 58.08 0.00099862 Dibenzalacetone 0.053 234.20 0.0002263 Lit: 110-111°C Actual: 75-80 Calculations of theoretical yield (based on limiting reagent) and crude and pure % yield: (4 prs
1. (15 points) A student in an organic ch points) A student in an organic chemistry lab prepared dibenzalacetone according to the following chemical res following chemical reaction using excess base. It is important that the molar ratio of the reactants in this reaction be 2:1. NaOll heat (-2 ,0) 234.30 g/mol 58.08 g/mol 106.23 g/mol a) If the student started with 1.06 g of benzaldehyde and 0.29 g of acetone, what is the theoretical yield of the product? b)...
1. On development of the TLC plates for ortho- and para-nitroaniline, which isomer travelled faster? Why? What was the solvent? What is the thin layer made of? (4 pts) 2. 1.000 grams of acetone was reacted with 3.651 grams of benzaldehyde in a mixture of water and ethanol and an excess NaOH. The isolated dibenzalacetone product was 2.015 grams. What was the limiting factor? What is the structural formula of the product? What was the yield as percent of theoretical?...
Weeks 48 5: Hydrogenation of methyl oleate to give methyl stearate . Understand the reaction stoichiometry for this lab, including balanced equation. Is Pd/C consumed in the reaction? How is H2 gas generated, and is it stoichiometric or catalytic in this reaction? Be able to identify limiting reagent, calculate theoretical and percent yield. . Why is the starting material an oil, while the product is solid (if pure)? Understand the intermolecular forces involved, and how these are different for the...
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