Orgo 1 Report 2.docx - Experiment 4A Determination of a...

This preview shows page 1 - 2 out of 4 pages.

Experiment 4A: Determination of a Partition Coefficient for 9-Flourenone, Methylene Chloride, and Water Experiment 4B: Solvent Extraction I: Acid-Base Extraction Using the System Benzoic Acid, Methylene Chloride, and Sodium Bicarbonate Solution Objective: 4A. Determine a partition coefficient for the system benzoic acid, methylene chloride, and water at the microscopic level. We will also experiment using different measurements such as mg, mL, and droplets. In addition, our instruments will consist of electronic balances, pipets, and mixers. 4B. We will use a technique where a reversible reaction alters the solubility of benzoic acid. Experimental Procedure: The procedure was followed as described in Mayo, pages 141-145, with the modifications listed in the posted Blackboard document. Additional modifications to the procedure included the following: 1. Use 75 mg of benzoic acid and then 1 mL each of methylene chloride and water during the initial addition (use 10% sodium bicarbonate instead of water for 4B) 2. Use a 20 mL separator funnel to mix and separate the layers, you may use the 5 mL vial and glass pipet method for 4B as per the textbook, however our TA let use either or. 3. Use anhydrous sodium sulfate. a. Use a sample glass pipet to transfer the methylene chloride into a test tube. Use anhydrous sodium sulfate in test tube. (DCM is bottom layer) (4B)
Image of page 1

Subscribe to view the full document.

Image of page 2

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern