using 40 mg of estrone (MW 270.4) and 1 ml of .5 M NaBH4.
A. What is the limiting reagent?
B. What is the theoretical yield?
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using 40 mg of estrone (MW 270.4) and 1 ml of .5 M NaBH4.
A. What...
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
During preparation of triphenylmethanol (MW= 323), 646 mg of triphenylbromolmethane, was added to a 36 mL...
During preparation of triphenylmethanol (MW= 323), 646 mg of triphenylbromolmethane, was added to a 36 mL of 50% water (excess). This yielded 130 mg of triphenylmethanol (MW=260). What is the theoretical yield of the triphenylmethanol? What is the percent yield of the reaction? Please show all work in explanation.
10. In the preparation of acetanilide, 4 mL of aniline (Density= 1.02 g/mL; MW=92.13g/mol) and 5...
10. In the preparation of acetanilide, 4 mL of aniline (Density= 1.02 g/mL; MW=92.13g/mol) and 5 mL of acetic anhydride (Density=1.08 g/mL; MW=102.09 g/mol) was used for synthesis of 3.2 grams of acetanilide (MW=135.17 g/mol). Please show your work. (12 pts) a) What is the limiting reagent during the reaction? b) What is the percent yield for acetanilide?
using the procedure above complete the stoichiometry table Procedure In an oven-dried, 100 ml round bottom...
using the procedure above complete the stoichiometry
table
Procedure In an oven-dried, 100 ml round bottom flask containing magnetic stirring bar was added hydrobenzoin (1.0 8.4.7 mmol), anhydrous iron(III) chloride (0.3 g, 1.8 mmol), and anhydrous acetone (30 ml). The mixture was heated to reflux and stirred for 30 min. The reaction mixture was cooled tort and transferred to a separatory funnel containing 10% aq potassium carbonate (10 mL). Water (50 mL) was added and the aqueous solution was extracted...
complete the stoichiometry table for the process above Experimental Notes 4, H ОН NaBH4 NaOH OH...
complete the stoichiometry table for the process above
Experimental Notes 4, H ОН NaBH4 NaOH OH H2O OH Step 1: Procedure for the Sodium Borohydride Reduction of 3-Ethoxy-4-hydroxybenzaldehyde: Dissolve 1.62 g of 3-ethoxy-4-hydroxybenzaldehyde in 10 mL of 1.0 M NaOH in a 125 mL Erlenmeyer flask with a magnetic stir bar. Cool the flask in a cold-water bath, and then add, in small portions, 0.30 g of NaBH, over five minutes. Remove the cold-water bath and allow the reaction flask...
A 25 mg sample of Ciprofloxacin (Mw 331.35 g/mol, a = 9.083 X 103/M-cm) is dissolved in 1 liter of water and the absorbance of a 10 ml sample is found to be 0.56 at 430 nm. What is the purity of...
A 25 mg sample of Ciprofloxacin (Mw 331.35 g/mol, a = 9.083 X 103/M-cm) is dissolved in 1 liter of water and the absorbance of a 10 ml sample is found to be 0.56 at 430 nm. What is the purity of the ciprofloxacin sample? (5 pts) 9.
A 25 mg sample of Ciprofloxacin (Mw 331.35 g/mol, a = 9.083 X 103/M-cm) is dissolved in 1 liter of water and the absorbance of a 10 ml sample is found to...
Name Prelaboratory Assignment 9 (25 pts) 1. A sample of 0.72 g of Al is reacted with 17.0 mL of 2.4 M KOH. Which one...
Name Prelaboratory Assignment 9 (25 pts) 1. A sample of 0.72 g of Al is reacted with 17.0 mL of 2.4 M KOH. Which one is the limiting reagent? SHOW WORK 9 pts 2Al (s)+ 2KOH (aq) + 6 H2O ()-2KAI(OH), (aq)+ 3 H: (g) 2. If a salt has a solubility of 27.2 g/100 mL water at 25 °C, what volume of water would be needed to dissolve 12.4 g of the salt? 6 pts 3. Calculate the theoretical...
1. Consider the following reaction: 1.00 g 20.0 mL 6.00 M 14.0 g a) Which substance...
1. Consider the following reaction: 1.00 g 20.0 mL 6.00 M 14.0 g a) Which substance is the limiting reactant? b) What is the theoretical yield of the complex formed in the reaction? c) If 10.0 g of the complex was obtained from the reaction, what is the percent yield? 2. Draw the structures for the Al(C204)3 ion and the Cu(C204) ion
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 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
10. In the preparation of acetanilide, 4 mL of aniline (Density= 1.02 g/mL; MW=92.13g/mol) and 5 mL of acetic anhydride (Density=1.08 g/mL; MW=102.09 g/mol) was used for synthesis of 3.2 grams of acetanilide (MW=135.17 g/mol). Please show your work. (12 pts) a) What is the limiting reagent during the reaction? b) What is the percent yield for acetanilide?
using the procedure above complete the stoichiometry
table
Procedure In an oven-dried, 100 ml round bottom flask containing magnetic stirring bar was added hydrobenzoin (1.0 8.4.7 mmol), anhydrous iron(III) chloride (0.3 g, 1.8 mmol), and anhydrous acetone (30 ml). The mixture was heated to reflux and stirred for 30 min. The reaction mixture was cooled tort and transferred to a separatory funnel containing 10% aq potassium carbonate (10 mL). Water (50 mL) was added and the aqueous solution was extracted...
complete the stoichiometry table for the process above
Experimental Notes 4, H ОН NaBH4 NaOH OH H2O OH Step 1: Procedure for the Sodium Borohydride Reduction of 3-Ethoxy-4-hydroxybenzaldehyde: Dissolve 1.62 g of 3-ethoxy-4-hydroxybenzaldehyde in 10 mL of 1.0 M NaOH in a 125 mL Erlenmeyer flask with a magnetic stir bar. Cool the flask in a cold-water bath, and then add, in small portions, 0.30 g of NaBH, over five minutes. Remove the cold-water bath and allow the reaction flask...
A 25 mg sample of Ciprofloxacin (Mw 331.35 g/mol, a = 9.083 X 103/M-cm) is dissolved in 1 liter of water and the absorbance of a 10 ml sample is found to be 0.56 at 430 nm. What is the purity of the ciprofloxacin sample? (5 pts) 9.
A 25 mg sample of Ciprofloxacin (Mw 331.35 g/mol, a = 9.083 X 103/M-cm) is dissolved in 1 liter of water and the absorbance of a 10 ml sample is found to...
Name Prelaboratory Assignment 9 (25 pts) 1. A sample of 0.72 g of Al is reacted with 17.0 mL of 2.4 M KOH. Which one is the limiting reagent? SHOW WORK 9 pts 2Al (s)+ 2KOH (aq) + 6 H2O ()-2KAI(OH), (aq)+ 3 H: (g) 2. If a salt has a solubility of 27.2 g/100 mL water at 25 °C, what volume of water would be needed to dissolve 12.4 g of the salt? 6 pts 3. Calculate the theoretical...
1. Consider the following reaction: 1.00 g 20.0 mL 6.00 M 14.0 g a) Which substance is the limiting reactant? b) What is the theoretical yield of the complex formed in the reaction? c) If 10.0 g of the complex was obtained from the reaction, what is the percent yield? 2. Draw the structures for the Al(C204)3 ion and the Cu(C204) ion
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)...
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