{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

EXP22 - 1 Fijany Layla Fijany Chem 12A T/TH 5-10pm...

Info icon This preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
1 Fijany Layla Fijany Chem 12A T/TH 5-10pm 11/8/2011 Experiment 22: 4-Methylcyclohexene Purpose : To experimentally obtain high yield of 4-methylcyclohexene with acid dehydration reactions to form an alkene. Introduction: Alcohol dehydration is an acid-catalyzed reaction performed by strong, concentrated mineral acids such as sulfuric acid and phosphoric acids. The acid protonates the alcoholic hydroxyl group, permitting it to dissociate as water. Loss of a proton from the intermediate (elimination) brings about an alkene. The equilibrium that is associated with this reaction will be shifted in favor of the product by distilling it from the reaction mixture as it is formed. By continuously removing the products, a high yield of 4-methylcyclohexene can be obtained. A small amount of phosphoric acid can be removed by washing the distillate mixture with a saturated sodium chloride solution. Hypothesis: 4-methylcyclohexanol along with phosphoric acid and sulfuric acid will produce an alkene bond. Set Up:
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
2 List of Reagents FW (g/mol) BP (˚C) MP (˚C) Density (g/cm 3 ) Other (hazards, uses, etc) Sodium Chloride (aq) (NaCl aq ): 58.44 1413 801 2.17 - aka salt, used to preserve foods Anhydrous sodium sulfate (Na 2 SO 4 ): 142 1429
Image of page 2
Image of page 3
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