(b) A researcher wishes to obtain a glycoside (an organic compound) from an aqueous plant extract using the solvent extraction technique. She therefore performs the following steps: Step 1: An aqueous solution (100 mL) containing 7 g of the glycoside was shaken with 50 mL of ethyl acetate. Step 2: The resulting aqueous layer from Step 1 was further shaken with 50 mL of dichloromethane. Given that: Kp for the glycoside in ethyl acetate-water = 0.8 Kp for the glycoside in dichloromethane-water = 0.9 (i) Calculate the total mass of glycoside extracted. (ii) If the molar mass of the glycoside = 784.3 g/mol, calculate the molar concentration of the %3D glycoside remaining in the aqueous layer after each extraction.
(b) A researcher wishes to obtain a glycoside (an organic compound) from an aqueous plant extract using the solvent extraction technique. She therefore performs the following steps: Step 1: An aqueous solution (100 mL) containing 7 g of the glycoside was shaken with 50 mL of ethyl acetate. Step 2: The resulting aqueous layer from Step 1 was further shaken with 50 mL of dichloromethane. Given that: Kp for the glycoside in ethyl acetate-water = 0.8 Kp for the glycoside in dichloromethane-water = 0.9 (i) Calculate the total mass of glycoside extracted. (ii) If the molar mass of the glycoside = 784.3 g/mol, calculate the molar concentration of the %3D glycoside remaining in the aqueous layer after each extraction.
Macroscale and Microscale Organic Experiments
7th Edition
ISBN:9781305577190
Author:Kenneth L. Williamson, Katherine M. Masters
Publisher:Kenneth L. Williamson, Katherine M. Masters
Chapter7: Extraction
Section: Chapter Questions
Problem 1Q
Related questions
Question
![(b)
A researcher wishes to obtain a glycoside (an organic compound) from an aqueous plant extract
using the solvent extraction technique. She therefore performs the following steps:
Step 1: An aqueous solution (100 mL) containing 7 g of the glycoside was shaken with 50 mL of
ethyl acetate.
Step 2: The resulting aqueous layer from Step 1 was further shaken with 50 mL of
dichloromethane.
Given that:
Kp for the glycoside in ethyl acetate-water = 0.8
Kp for the glycoside in dichloromethane-water = 0.9
(i) Calculate the total mass of glycoside extracted.
(ii) If the molar mass of the glycoside = 784.3 g/mol, calculate the molar concentration of the
glycoside remaining in the aqueous layer after each extraction.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F034dc12f-b385-4ddc-908b-a4d6154315b7%2F8cedf78a-9b33-4b78-902e-77a35e21d3c6%2Fw45ey7d_processed.jpeg&w=3840&q=75)
Transcribed Image Text:(b)
A researcher wishes to obtain a glycoside (an organic compound) from an aqueous plant extract
using the solvent extraction technique. She therefore performs the following steps:
Step 1: An aqueous solution (100 mL) containing 7 g of the glycoside was shaken with 50 mL of
ethyl acetate.
Step 2: The resulting aqueous layer from Step 1 was further shaken with 50 mL of
dichloromethane.
Given that:
Kp for the glycoside in ethyl acetate-water = 0.8
Kp for the glycoside in dichloromethane-water = 0.9
(i) Calculate the total mass of glycoside extracted.
(ii) If the molar mass of the glycoside = 784.3 g/mol, calculate the molar concentration of the
glycoside remaining in the aqueous layer after each extraction.
Expert Solution
![](/static/compass_v2/shared-icons/check-mark.png)
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 4 steps with 4 images
![Blurred answer](/static/compass_v2/solution-images/blurred-answer.jpg)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.Recommended textbooks for you
![Macroscale and Microscale Organic Experiments](https://www.bartleby.com/isbn_cover_images/9781305577190/9781305577190_smallCoverImage.gif)
Macroscale and Microscale Organic Experiments
Chemistry
ISBN:
9781305577190
Author:
Kenneth L. Williamson, Katherine M. Masters
Publisher:
Brooks Cole
![Introduction to General, Organic and Biochemistry](https://www.bartleby.com/isbn_cover_images/9781285869759/9781285869759_smallCoverImage.gif)
Introduction to General, Organic and Biochemistry
Chemistry
ISBN:
9781285869759
Author:
Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Publisher:
Cengage Learning
![Organic Chemistry](https://www.bartleby.com/isbn_cover_images/9781305580350/9781305580350_smallCoverImage.gif)
Organic Chemistry
Chemistry
ISBN:
9781305580350
Author:
William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Publisher:
Cengage Learning
![Macroscale and Microscale Organic Experiments](https://www.bartleby.com/isbn_cover_images/9781305577190/9781305577190_smallCoverImage.gif)
Macroscale and Microscale Organic Experiments
Chemistry
ISBN:
9781305577190
Author:
Kenneth L. Williamson, Katherine M. Masters
Publisher:
Brooks Cole
![Introduction to General, Organic and Biochemistry](https://www.bartleby.com/isbn_cover_images/9781285869759/9781285869759_smallCoverImage.gif)
Introduction to General, Organic and Biochemistry
Chemistry
ISBN:
9781285869759
Author:
Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Publisher:
Cengage Learning
![Organic Chemistry](https://www.bartleby.com/isbn_cover_images/9781305580350/9781305580350_smallCoverImage.gif)
Organic Chemistry
Chemistry
ISBN:
9781305580350
Author:
William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Publisher:
Cengage Learning
![Chemistry: The Molecular Science](https://www.bartleby.com/isbn_cover_images/9781285199047/9781285199047_smallCoverImage.gif)
Chemistry: The Molecular Science
Chemistry
ISBN:
9781285199047
Author:
John W. Moore, Conrad L. Stanitski
Publisher:
Cengage Learning
![Chemistry: Principles and Reactions](https://www.bartleby.com/isbn_cover_images/9781305079373/9781305079373_smallCoverImage.gif)
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
![World of Chemistry, 3rd edition](https://www.bartleby.com/isbn_cover_images/9781133109655/9781133109655_smallCoverImage.jpg)
World of Chemistry, 3rd edition
Chemistry
ISBN:
9781133109655
Author:
Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste
Publisher:
Brooks / Cole / Cengage Learning