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2. Functional groups in Aspirin Draw the formula for Example: hydroxy group (R-OH) Which group may cause irritation? Ester group Carboxylic group

2. Functional groups in Aspirin Draw the formula for Example: hydroxy group (R-OH) Which group may cause irritation? Ester group Carboxylic group

World of Chemistry, 3rd edition
World of Chemistry, 3rd edition
3rd Edition
ISBN:9781133109655
Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste
Chapter20: Organic Chemistry
Section: Chapter Questions
Problem 7STP
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I need help answering 2. Functional groups in aspirin
2. Functional groups in Aspirin Draw the formula for Example: hydroxy group (R-OH) Which group may cause irritation? Ester group Carboxylic group
Transcribed Image Text:2. Functional groups in Aspirin Draw the formula for Example: hydroxy group (R-OH) Which group may cause irritation? Ester group Carboxylic group
EXPERIMENT #12: Aspirin synthesis DATA TABLES Column #2 (video data) in table below is the data obtained by watching the video Column #3 (student data) is data obtained by a student performing the same reaction. This data will be provided by your instructor for each student. Video data Student data Weight of Salicylic acid 2.027g 2.110g Weight of weighing paper 0.354g 0.356g Weight of weighing paper & Aspirin 2.711g 3.001g Weight of Aspirin 2.357g 2.645g RESULTS: Analysis of the experimental data. 138.00 Molecular weight of salicylic acid Molecular weight of aspirin 180.00 1. Use the values from the DATA table and the molecular weights of salicylic acid and aspirin to determine: The predicted maximum (theoretical) yield of Aspirin (g). The experimental yield of Aspirin (g). The % yield in each experiment The average % yield for both experiments. Determine the number of aspirin tablets that could be prepared if a typical tablet contains 325 mg aspirin (the rest is starch binder and buffer to reduce the possible irritation) in each experiment.. Video data Student input The Maximum yield of Aspirin (g) 2.644g 2.752g The experimental yield of Aspirin (g) 2.357g 2.645g The % yield in each experiment 89.14g 96.11g The average % yield 92.63g Number of tablets that can be prepared 7mg 8mg Sample calculations: In the space below show complete calculations for Student Data Include formulas and units. The Maximum yield of Aspirin (g) 2.110g x 1moleSA/138.00g x 1moleASA/1moleSA x 180.00g/1 moleASA = 2.752g The experimental yield of Aspirin (g) = Weight of Aspirin 2.645g The % yield in each experiment 2.645g/2.752g x 100= 96.11g The average % yield 96.11g+89.14g /2 = 92.63g Number of tablets that can be prepared 2645mg x 1/325mg = 8mg
Transcribed Image Text:EXPERIMENT #12: Aspirin synthesis DATA TABLES Column #2 (video data) in table below is the data obtained by watching the video Column #3 (student data) is data obtained by a student performing the same reaction. This data will be provided by your instructor for each student. Video data Student data Weight of Salicylic acid 2.027g 2.110g Weight of weighing paper 0.354g 0.356g Weight of weighing paper & Aspirin 2.711g 3.001g Weight of Aspirin 2.357g 2.645g RESULTS: Analysis of the experimental data. 138.00 Molecular weight of salicylic acid Molecular weight of aspirin 180.00 1. Use the values from the DATA table and the molecular weights of salicylic acid and aspirin to determine: The predicted maximum (theoretical) yield of Aspirin (g). The experimental yield of Aspirin (g). The % yield in each experiment The average % yield for both experiments. Determine the number of aspirin tablets that could be prepared if a typical tablet contains 325 mg aspirin (the rest is starch binder and buffer to reduce the possible irritation) in each experiment.. Video data Student input The Maximum yield of Aspirin (g) 2.644g 2.752g The experimental yield of Aspirin (g) 2.357g 2.645g The % yield in each experiment 89.14g 96.11g The average % yield 92.63g Number of tablets that can be prepared 7mg 8mg Sample calculations: In the space below show complete calculations for Student Data Include formulas and units. The Maximum yield of Aspirin (g) 2.110g x 1moleSA/138.00g x 1moleASA/1moleSA x 180.00g/1 moleASA = 2.752g The experimental yield of Aspirin (g) = Weight of Aspirin 2.645g The % yield in each experiment 2.645g/2.752g x 100= 96.11g The average % yield 96.11g+89.14g /2 = 92.63g Number of tablets that can be prepared 2645mg x 1/325mg = 8mg
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