Lab Report 5.docx - LAB REPORT 5 EXTRACTION Name Group Instruction Section Date Anh Ton Group 2 Ph D Jyothi Singh 13381 November 6th 2019 Introduction

Lab Report 5.docx - LAB REPORT 5 EXTRACTION Name Group...

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

LAB REPORT 5: EXTRACTION Name: Anh Ton Group: Group 2 Instruction: Ph. D Jyothi Singh Section: 13381 Date: November 6 th , 2019 Introduction and Goals: In this laboratory, students will study and apply one of the techniques in the organic chemistry laboratory, the extraction. Unlike crystallization, which is restricted to solids, extraction is the general term for the recovery of a substance from a mixture by bringing it into connect with a solvent that preferentially dissolves the desired material. In the process of extraction, the initial mixture may be solid or liquid, and various techniques and apparatus are required for different situations. After an organic reaction, the reaction product is frequently obtained as a solution or a suspension in water along with inorganic and other organic by-products and reagents. By shaking the aqueous mixture with a water-immiscible organic solvent, the product is transferred to the solvent layer and may be recovered from it by evaporation of the organic solvent. In this experiment, the common technique of liquid-liquid extraction is used to separate benzoic acid from the benzoic acid aqueous solution. The purpose of the experiment is to develop the skills to perform an extraction effectively, including the use of appropriate solvents, ability to prevent the formation of an emulsion layer, and removing residual water from the organic layer and evaporating the organic solvent. Experimental: The materials needed for the extraction experiment were a 150mL beaker, a 10mL cylinder, a 50mL cylinder, a 125mL flask, a, dropper, a separatory funnel, a titration Burette, a funnel, 0.020M solution of benzoic acid, 0.020M solution of NaOH, solution of methylene chloride, and phenolphthalein. The first experiment carried out was single extraction of benzoic
Image of page 1
Image of page 2

You've reached the end of your free preview.

Want to read all 4 pages?

  • Fall '08
  • Staff

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

Ask Expert Tutors You can ask You can ask ( soon) You can ask (will expire )
Answers in as fast as 15 minutes