{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Chemlab11 - CHY 123 Synthesis of Aspirin Introduction...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
CHY 123 Synthesis of Aspirin Introduction Aspirin has been around for hundreds of years as a painkiller. It used to be made from an extract of the willow tree bark until the late 19 th century when its active ingredient, Acetylsalicylic acid¸ was isolated. Today Acetylsalicylic acid is synthetically formed by reacting salicylic acid and acetic anhydride. Procedures We gathered the needed chemicals and containers needed for the experiment. We then weighed out .4g of the reagent grade acetylsalicylic acid into a beaker, then added 10ml of the NaOH, and heated the solution. After heating it we transferred the remains to a 250ml volumetric flask. We added distilled water to the flask until it was full. From this solution we made four dilutions (5/100, 4/100, 3/100, 2/100) of the solution and tested them with the UV spectrometer. We then weighed out .1g of our dried synthesized aspirin, put it into a beaker, and dissolved the crystals with 25ml of the iron solution. We then put this into a volumetric flask and filled the rest of it with the iron solution. This solution was then put into a
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ 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