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10. How would your procedure change if you were to use dichloromethane as solvent instead of ethyl acetate?

10. How would your procedure change if you were to use dichloromethane as solvent instead of ethyl acetate?

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Could I get some help with question 10, please? The first image includes the procedure.
inces Mailings Aa A PA- Fy estigate Review View E E ME Y Biphenyl/Ethyl Acetate 1= - Paragraph Help 2 T 15 F No Spacing + NaOH → Heading 1 Ethyl Acetate NH3 CI 10. How would your procedure change if you were to use dichloromethane as solvent instead of ethyl acetate? GE Styles HCI layı NA 11. Now draw a flowchart to represent the experiment that was completed in lab. Include the molecular structures for any cations and/or anions formed in the experiment. You can find a sample flowchart on Canvas under Module 4. 4-Nitroaniline/ Biphenyl Aq огд Heading 2 +Nack: Find Repli Sele Editin 022-80
Transcribed Image Text:inces Mailings Aa A PA- Fy estigate Review View E E ME Y Biphenyl/Ethyl Acetate 1= - Paragraph Help 2 T 15 F No Spacing + NaOH → Heading 1 Ethyl Acetate NH3 CI 10. How would your procedure change if you were to use dichloromethane as solvent instead of ethyl acetate? GE Styles HCI layı NA 11. Now draw a flowchart to represent the experiment that was completed in lab. Include the molecular structures for any cations and/or anions formed in the experiment. You can find a sample flowchart on Canvas under Module 4. 4-Nitroaniline/ Biphenyl Aq огд Heading 2 +Nack: Find Repli Sele Editin 022-80
Page 1 Introduction In this experiment, you will be separating a mixture of 4-nitroaniline and biphenyl by extraction. Finally, you will identify and determine the purity of each compound. Usually, the extraction is used as part of the 'work-up' after completing a chemical reaction. When part of a work-up, the product could be isolated for other by-products of the reaction. 1 Experiment (Day 1) Dissolve about 1.0 g of the 4-nitroaniline /biphenyl (1:1 by mass) mixture in 10 mL of ethyl acetate in a 50 mL Erlenmeyer flask, and label this flask 1. Add 5 mL of 3 M aqueous hydrochloric acid (HCI) to the flask (note what happens), mix well, then pour off the mixture into a separatory funnel. Mix the contents thoroughly by shaking vigorously for about 2-3 min with periodic venting (your instructor will demonstrate the correct technique for this). Allow the layers to separate completely, then drain off the lower layer into a second 50 mL Erlenmeyer flask (labeled flask 2). Add another 5 mL of 3 M aqueous HCl solution to the separatory funnel, mix the contents as before, and drain off the lower layer into flask 2. Exactly what chemical compound is present in flask 2? Drain off the upper layer into a 50 mL Erlenmeyer flask (see below, under "biphenyl"), and label this "flask 3". Return the contents of flask 2 into the separatory funnel, then add 2 mL of ethyl acetate and mix it thoroughly. Drain off the lower layer back into flask 2, then discard the upper ethyl acetate layer into the designated waste. This is called backwashing and serves to remove any organic material that might contaminate the contents of flask 2. ly of 3
Transcribed Image Text:Page 1 Introduction In this experiment, you will be separating a mixture of 4-nitroaniline and biphenyl by extraction. Finally, you will identify and determine the purity of each compound. Usually, the extraction is used as part of the 'work-up' after completing a chemical reaction. When part of a work-up, the product could be isolated for other by-products of the reaction. 1 Experiment (Day 1) Dissolve about 1.0 g of the 4-nitroaniline /biphenyl (1:1 by mass) mixture in 10 mL of ethyl acetate in a 50 mL Erlenmeyer flask, and label this flask 1. Add 5 mL of 3 M aqueous hydrochloric acid (HCI) to the flask (note what happens), mix well, then pour off the mixture into a separatory funnel. Mix the contents thoroughly by shaking vigorously for about 2-3 min with periodic venting (your instructor will demonstrate the correct technique for this). Allow the layers to separate completely, then drain off the lower layer into a second 50 mL Erlenmeyer flask (labeled flask 2). Add another 5 mL of 3 M aqueous HCl solution to the separatory funnel, mix the contents as before, and drain off the lower layer into flask 2. Exactly what chemical compound is present in flask 2? Drain off the upper layer into a 50 mL Erlenmeyer flask (see below, under "biphenyl"), and label this "flask 3". Return the contents of flask 2 into the separatory funnel, then add 2 mL of ethyl acetate and mix it thoroughly. Drain off the lower layer back into flask 2, then discard the upper ethyl acetate layer into the designated waste. This is called backwashing and serves to remove any organic material that might contaminate the contents of flask 2. ly of 3
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