Experiment 52A-Identification of Unknowns.docx

Experiment 52A-Identification of Unknowns.docx - Experiment...

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

View Full Document Right Arrow Icon
Experiment 52A-Identification of Unknowns The objective of this experiment is to identify an unknown using properties such as structure, solubility, density, etc. A series of solubility tests were performed based on its solubility in H 2 O, HCl, NaOH/NaHCO 3 , and H 2 SO 4 . The figure below was used to determine the identities of the unknown which could have been either 2-napthol, biphenyl, benzophenone, or Benzoic Acid. All of the possible compounds were tested against each solvent to compare the reactions against that of the unknown. All the compounds were first combined with water to test solubility. Compounds that are soluble in water must have four carbons or less, and should contain Oxygen, Nitrogen, or Sulfur. Also branching of the alkyl chain lowers the melting/boiling point and also lowers intermolecular forces. Lowering the intermolecular forces leads to a greater solubility in water. Since all of these compounds are aromatic and therefore nonpolar, they will all be insoluble in water.
Image of page 1

Info iconThis 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