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Student Name: ID#: Date: EXPERIMENT 3 - PREPARATION OF ASPIRIN PRE - LABORATORY ASSESSMENT 1. Could...
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...
allylic acid (aspirin) Preparation of DATE SECTION NAME GRADE PARTNER Experiment 33 PRE-LAB QUESTIONS Are the...
allylic acid (aspirin) Preparation of DATE SECTION NAME GRADE PARTNER Experiment 33 PRE-LAB QUESTIONS Are the medicinal properties of aspirin due to acetylsalicylic acid or salicyclic acid? 2. Draw the structure of aspirin. Should this compound test positive with 1% iron(III) chloride solution? Explain your answer. 3. Salicylic acid can irritate the stomach. Draw the structure of the molecule. Circle and name the functional group for groups) responsible for this effect Maonesium hydroxide, MgOH), and magnesium carbonate, MgCo., are often...
A student prepared aspirin (C9H8O4) in a laboratory experiment using the following reaction. C7H6O3 + C4H6O3...
A student prepared aspirin (C9H8O4) in a laboratory experiment using the following reaction. C7H6O3 + C4H6O3 C9H8O4 + HC2H3O2 The student reacted 1.50 g salicylic acid (C7H6O3) with 2.00 g acetic anhydride (C4H6O3). The yield was 1.50 g aspirin. Calculate the theoretical yield and the percent yield for this experiment. theoretical yield
Name Experiment 7 - PREPARATION OF ASPIRIN AND OTHER ESTERS Date Partner Station # - Pre-Lab...
Name Experiment 7 - PREPARATION OF ASPIRIN AND OTHER ESTERS Date Partner Station # - Pre-Lab Preparation Section Questions 1-3 refer to these structures: CH,CH-O-CH,CH, CH,CH,CH,CH.CH.CH-OH CH,-0-0-CH,CH.CH, O anch-o- & -on,ch, and on and ansch.com 1. a) List the letters for the structures that are esters. b) Circle the ester functional group in any esters. 2. a) Write the letters for the two compounds that could be used to make an ester by an esterification reaction. b) Write the reaction...
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...
Experiment 11: Synthesis of Aspirin pre-lab (4 pts) 1) (2 pts) Refer to the introduction on...
Experiment 11: Synthesis of Aspirin pre-lab (4 pts) 1) (2 pts) Refer to the introduction on interpreting the ferric chloride test for phenols. Two students performed the aspirin synthesis experiment. Their melting point and ferric chloride test data are shown below. Based on the results, which student's aspirin has the higher purity? Justify your choice using the melting point data and ferric chloride test results. Melting point range for pure aspirin = 136-140 °C. Melting point range (°C) Ferric chloride...
Lab #22; Intermolecular Forces Pre-Laboratory Questions Name: 1. Read about intermolecular forces in your textbook, pages...
Lab #22; Intermolecular Forces Pre-Laboratory Questions Name: 1. Read about intermolecular forces in your textbook, pages 467-472 Construct a table comparing the following intermolecular forces: dipole- dipole interactions, hydrogen bonds and London Forces. Force 5Do oe 6 nd then bout 2. Read example 11.10 on page 470 in your textbook. Then do problem 11.89 on page 484. But instead of just answering "yes" for the molecules 7 Ob that can hydrogen bond, draw each molecule twice and show the hydrogen...
Lab Section Nume Preparation and Examination of a Drug: Aspirin EXPERIMENT 25 OBSERVATIONS AND RESULTS 1....
Lab Section Nume Preparation and Examination of a Drug: Aspirin EXPERIMENT 25 OBSERVATIONS AND RESULTS 1. The Synthesis of Aspirin Record the weight of your aspirin, and calculate the percentage yield. Base the yield on salicylic acid since we acetic anhydride was used. Show all calculations. Weight of aspirin d. 08035 Yield of aspirin 2. Contaminants in Aspirin What was the color of the salicylic acid-ferric chloride test solution? On the basis of color is either your aspirin or commercial...
95 Experiment IX Synthesis of Aspirin Prelaboratory Assignment Name: frobect Bun, Bak Baniot Date...
95 Experiment IX Synthesis of Aspirin Prelaboratory Assignment Name: frobect Bun, Bak Baniot Date Sabaitecd Section #. . Using chemical structures, write the balanced equation for the synthesis of aspirin and label all reagents and products with their appropriate names. ooH он C14 14,03 2. What are the two functional groups on salicylic acid? 3. What are the two functional groups on aspirin? b. anhydride? b) How many moles of Apririn could be produced from 2 moles of salicylic acid?...
Preparation of Aspirin, Methyl Salicylate and Nylon Experiment #9 Pre-Lab Exercise Briefly describe the difference between...
Preparation of Aspirin, Methyl Salicylate and Nylon Experiment #9 Pre-Lab Exercise Briefly describe the difference between an acid and an ester. Give an example of each. 2. Show the chemical reaction for the hydrolysis of the ester, ethyl acetate, indicating the two products of this reaction. 3. Describe what is meant by an amide, showing the structure of at least one example of a compound that is an amide. Be sure to give the correct name of the compound you...
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...
allylic acid (aspirin) Preparation of DATE SECTION NAME GRADE PARTNER Experiment 33 PRE-LAB QUESTIONS Are the medicinal properties of aspirin due to acetylsalicylic acid or salicyclic acid? 2. Draw the structure of aspirin. Should this compound test positive with 1% iron(III) chloride solution? Explain your answer. 3. Salicylic acid can irritate the stomach. Draw the structure of the molecule. Circle and name the functional group for groups) responsible for this effect Maonesium hydroxide, MgOH), and magnesium carbonate, MgCo., are often...
Name Experiment 7 - PREPARATION OF ASPIRIN AND OTHER ESTERS Date Partner Station # - Pre-Lab Preparation Section Questions 1-3 refer to these structures: CH,CH-O-CH,CH, CH,CH,CH,CH.CH.CH-OH CH,-0-0-CH,CH.CH, O anch-o- & -on,ch, and on and ansch.com 1. a) List the letters for the structures that are esters. b) Circle the ester functional group in any esters. 2. a) Write the letters for the two compounds that could be used to make an ester by an esterification reaction. b) Write the reaction...
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...
Experiment 11: Synthesis of Aspirin pre-lab (4 pts) 1) (2 pts) Refer to the introduction on interpreting the ferric chloride test for phenols. Two students performed the aspirin synthesis experiment. Their melting point and ferric chloride test data are shown below. Based on the results, which student's aspirin has the higher purity? Justify your choice using the melting point data and ferric chloride test results. Melting point range for pure aspirin = 136-140 °C. Melting point range (°C) Ferric chloride...
Lab #22; Intermolecular Forces Pre-Laboratory Questions Name: 1. Read about intermolecular forces in your textbook, pages 467-472 Construct a table comparing the following intermolecular forces: dipole- dipole interactions, hydrogen bonds and London Forces. Force 5Do oe 6 nd then bout 2. Read example 11.10 on page 470 in your textbook. Then do problem 11.89 on page 484. But instead of just answering "yes" for the molecules 7 Ob that can hydrogen bond, draw each molecule twice and show the hydrogen...
Lab Section Nume Preparation and Examination of a Drug: Aspirin EXPERIMENT 25 OBSERVATIONS AND RESULTS 1. The Synthesis of Aspirin Record the weight of your aspirin, and calculate the percentage yield. Base the yield on salicylic acid since we acetic anhydride was used. Show all calculations. Weight of aspirin d. 08035 Yield of aspirin 2. Contaminants in Aspirin What was the color of the salicylic acid-ferric chloride test solution? On the basis of color is either your aspirin or commercial...
95 Experiment IX Synthesis of Aspirin Prelaboratory Assignment Name: frobect Bun, Bak Baniot Date Sabaitecd Section #. . Using chemical structures, write the balanced equation for the synthesis of aspirin and label all reagents and products with their appropriate names. ooH он C14 14,03 2. What are the two functional groups on salicylic acid? 3. What are the two functional groups on aspirin? b. anhydride? b) How many moles of Apririn could be produced from 2 moles of salicylic acid?...
Preparation of Aspirin, Methyl Salicylate and Nylon Experiment #9 Pre-Lab Exercise Briefly describe the difference between an acid and an ester. Give an example of each. 2. Show the chemical reaction for the hydrolysis of the ester, ethyl acetate, indicating the two products of this reaction. 3. Describe what is meant by an amide, showing the structure of at least one example of a compound that is an amide. Be sure to give the correct name of the compound you...
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