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please help me ! do you think this is good so far ? Results/Data • Aspirin...
please help me ! do you think this is good so far ?
Results/Data • Aspirin synthesis salicylic acid: 2.0 g Acetic anhydride: 2 mL d= 1.082g/mL sodium acetate: 0.4 g • Experimental yield of aspirin: 2.4 g FORMATION OF ESTERS II. PREPARATION OF ACETYL SALICYLIC ACID (ASPIRIN): 1 Complete the table below by entering appropriate values into the empty boxes. Show calculations for all entries clearly below. Reactants Chemical MW Grams of Moles of Moles of Limiting Melting Formula...
Calculate the number of moles of acetic anhydride present in the reaction mixture. c. w d....
Calculate the number of moles of acetic anhydride present in the reaction mixture. c. w d. Based on the number of moles of each reactant and the stoichiometry of the reaction, determine the limiting reactant in the preparation. Calculate the theoretical yield of the preparation, based on the number of moles of limiting reactant present. e. Calculate the percent yield of the preparation. f. Preparation of Aspirin Page 86 6. Limiting reactant 3. Following the procedure described in this experiment,...
Exercise 7: The % Yield of Aspirin Name Date Read Exercise 7 in your lab manual....
Exercise 7: The % Yield of Aspirin Name Date Read Exercise 7 in your lab manual. Complete the Pre-lab Assignment. In this substitute lab exercise, you will watch a short video on preparing aspirin. The video is posted on the course Moodle page, and it provides the masses of the reactants and the product; you should be able to calculate the theoretical yield and the % yield from the data given by the video. Submit the completed assignment by March...
Please see online the molecular wheights if needed please answer all questions throughly density of acetic...
Please see online the molecular wheights if needed
please answer all questions throughly
density of acetic anhydride is 1.08
Report the melting point range of aspirin and compare it to the literature value in a t format 2. able 3a. Calculate the moles of aspirin that salicylic acid would form if it were the limiting reactant. Use proper significant figures, units and show all work. 3b. Calculate the moles of aspirin that acetic anhydride would form if it were the...
density= 1.08g/mL molar mass = 102.09 DateULIT A. Preparation of Aspirin 2.931 mol EE 5.0 ml...
density= 1.08g/mL
molar mass = 102.09
DateULIT A. Preparation of Aspirin 2.931 mol EE 5.0 ml Mass of salicylic acid used Moles of salicylic acid used Volume of acetic anhydride used Moles of acetic anhydride used Identity of limiting reactant Theoretical yield of aspirin mol mol Calculations: B. 44.512 Yield Determination Mass of watch glass + filter paper Mass of watch glass, filter paper and dry aspirin Mass of dry aspirin Percent Yield Calculations: 103 Chemistry 131. EXPERIMENT 10
A student noticed that after drying the aspirin for a week in his drawer, the aspirin...
A student noticed that after drying the aspirin for a week in his drawer, the aspirin crystals appeared to be dry but the filter paper was still damp. He went ahead and performed the weighing as directed in the procedure. Did the damp filter paper affect any of the following? In each case, briefly explain your answer. 2. a. theoretical yield b. calculated actual yield calculated percent yield C. Name Class & Section Preparation of Aspirin - Report Form Data...
Aspirin can be synthesized in the lab by combining salicylic acid (C7H6O3) and acetic anhydride (C4H6O3)...
Aspirin can be synthesized in the lab by combining salicylic acid (C7H6O3) and acetic anhydride (C4H6O3) to form aspirin (C9H8O4) and acetic acid (C2H4O2).C2H4O2). The balanced equation for this reaction is C7H6O3+C4H6O3⟶C9H8O4+C2H4O2 A student started with 4.00 mL acetic anhydride (density=1.08 g/mL) and 2.07 g salicylic acid. The student synthesized 2.00 g of aspirin. Select the limiting reactant. acetic acid (C2H4O2) salicylic acid (C7H6O3) aspirin (C9H8O4) acetic anhydride (C4H6O3) Calculate the theoretical yield of aspirin (C9H8O4). theoretical yield: Calculate the...
Preparation of Aspirin Name Class & Section PRE-LABORATORY ASSIGNMENT 1. What hazards should you be aware of wh...
Preparation of Aspirin Name Class & Section PRE-LABORATORY ASSIGNMENT 1. What hazards should you be aware of when working with the following chemicals? a. Acetic anhydride b. Concentrated sulfuric acid 2. Explain the following terms as they relate to this experiment. a. Catalyst b. Limiting reactant 3. Following the procedure described in this experiment, a student reacted 2.775 g of salicylic acid with 4.0 ml of acetic anhydride and recovered 2.986 g of aspirin. a. Calculate the number of moles...
2. Based on the starting amounts of salicylic acid (2.00 g) and acetic anhydride (2.70 mL), which reactant is the l...
2. Based on the starting amounts of salicylic acid (2.00 g) and acetic anhydride (2.70 mL), which reactant is the limiting reagent? The density of acetic anhydride is 1.08 g/mL. Show your calculations. YAVOITVIETOAT 3. Based on Question 2, if a student recovers 1.83 grams of pure, dry aspirin, what is her percent yield? Show your calculations.
I need help with problem 4 and 5. Calculations 1. Show the correct, balanced, molecular formula...
I
need help with problem 4 and 5.
Calculations 1. Show the correct, balanced, molecular formula equation for the reaction you performed C7H703+C4H603 -->CH8O4+C2H402 2. Determine the limiting reactant in your reaction; is it salicylic acid or acetic anhydride? Show your work. Limiting reagent is salicylic acid 2.0/138.12g/mol =0.0145mal number of moles of salicylic acid. 1.086/ml -mass/5.0mL Massa 5.4 5.4/102,09g/mol =0.053 mol of acetic anhydride 0.0529-0.0145-0.0384 moles unreacted moles of acetic anhydride 3. What is the theoretical yield of acetylsalicylic...
please help me ! do you think this is good so far ?
Results/Data • Aspirin synthesis salicylic acid: 2.0 g Acetic anhydride: 2 mL d= 1.082g/mL sodium acetate: 0.4 g • Experimental yield of aspirin: 2.4 g FORMATION OF ESTERS II. PREPARATION OF ACETYL SALICYLIC ACID (ASPIRIN): 1 Complete the table below by entering appropriate values into the empty boxes. Show calculations for all entries clearly below. Reactants Chemical MW Grams of Moles of Moles of Limiting Melting Formula...
Calculate the number of moles of acetic anhydride present in the reaction mixture. c. w d. Based on the number of moles of each reactant and the stoichiometry of the reaction, determine the limiting reactant in the preparation. Calculate the theoretical yield of the preparation, based on the number of moles of limiting reactant present. e. Calculate the percent yield of the preparation. f. Preparation of Aspirin Page 86 6. Limiting reactant 3. Following the procedure described in this experiment,...
Exercise 7: The % Yield of Aspirin Name Date Read Exercise 7 in your lab manual. Complete the Pre-lab Assignment. In this substitute lab exercise, you will watch a short video on preparing aspirin. The video is posted on the course Moodle page, and it provides the masses of the reactants and the product; you should be able to calculate the theoretical yield and the % yield from the data given by the video. Submit the completed assignment by March...
Please see online the molecular wheights if needed
please answer all questions throughly
density of acetic anhydride is 1.08
Report the melting point range of aspirin and compare it to the literature value in a t format 2. able 3a. Calculate the moles of aspirin that salicylic acid would form if it were the limiting reactant. Use proper significant figures, units and show all work. 3b. Calculate the moles of aspirin that acetic anhydride would form if it were the...
density= 1.08g/mL
molar mass = 102.09
DateULIT A. Preparation of Aspirin 2.931 mol EE 5.0 ml Mass of salicylic acid used Moles of salicylic acid used Volume of acetic anhydride used Moles of acetic anhydride used Identity of limiting reactant Theoretical yield of aspirin mol mol Calculations: B. 44.512 Yield Determination Mass of watch glass + filter paper Mass of watch glass, filter paper and dry aspirin Mass of dry aspirin Percent Yield Calculations: 103 Chemistry 131. EXPERIMENT 10
A student noticed that after drying the aspirin for a week in his drawer, the aspirin crystals appeared to be dry but the filter paper was still damp. He went ahead and performed the weighing as directed in the procedure. Did the damp filter paper affect any of the following? In each case, briefly explain your answer. 2. a. theoretical yield b. calculated actual yield calculated percent yield C. Name Class & Section Preparation of Aspirin - Report Form Data...
Preparation of Aspirin Name Class & Section PRE-LABORATORY ASSIGNMENT 1. What hazards should you be aware of when working with the following chemicals? a. Acetic anhydride b. Concentrated sulfuric acid 2. Explain the following terms as they relate to this experiment. a. Catalyst b. Limiting reactant 3. Following the procedure described in this experiment, a student reacted 2.775 g of salicylic acid with 4.0 ml of acetic anhydride and recovered 2.986 g of aspirin. a. Calculate the number of moles...
2. Based on the starting amounts of salicylic acid (2.00 g) and acetic anhydride (2.70 mL), which reactant is the limiting reagent? The density of acetic anhydride is 1.08 g/mL. Show your calculations. YAVOITVIETOAT 3. Based on Question 2, if a student recovers 1.83 grams of pure, dry aspirin, what is her percent yield? Show your calculations.
I
need help with problem 4 and 5.
Calculations 1. Show the correct, balanced, molecular formula equation for the reaction you performed C7H703+C4H603 -->CH8O4+C2H402 2. Determine the limiting reactant in your reaction; is it salicylic acid or acetic anhydride? Show your work. Limiting reagent is salicylic acid 2.0/138.12g/mol =0.0145mal number of moles of salicylic acid. 1.086/ml -mass/5.0mL Massa 5.4 5.4/102,09g/mol =0.053 mol of acetic anhydride 0.0529-0.0145-0.0384 moles unreacted moles of acetic anhydride 3. What is the theoretical yield of acetylsalicylic...
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