{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Oxidation of Alcohol

Oxidation of Alcohol - Oxidation of Alcohol E/14/07 Heather...

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

View Full Document Right Arrow Icon
Oxidation of Alcohol Experiment 17 10/14/07 Heather Wilson Lab Partner: Caitlin de Blanc TA: Ted Matson Introduction In this experiment, the rate of oxidation of ethanol to produce ethanal using the oxidizing agent potassium dichromate was determined, using the procedure outlined by van Koppen (van Koppen, P. A. M. General Chemistry Laboratory Manual (UCSB). Copyright © 2007 Hayden- McNeil, Plymouth, MI. pp. xxx-xxx.). Data The absorbance of the oxidizing sample of ethanol was recorded over time onto a computer by a computer-integrated spectrophotometer. Absorbance of Light in 330 to 440 nm range Time (sec) Absorbance 10.635 0.125 31.114 0.111 51.754 0.099 72.271 0.087 92.82 0.077 113.348 0.067 133.877 0.061 154.415 0.055 174.903 0.049 195.512 0.047 216.133 0.039 236.631 0.037 257.149 0.034 277.727 0.034 298.247 0.032 318.877 0.027 339.529 0.026 360.078 0.026 380.636 0.025 401.159 0.023 421.673 0.023 442.293 0.023 462.861 0.022 483.513 0.022 504.082 0.022
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
The absorbance of the potassium dichromate/ sulfuric acid solution as measured by the spectrophot ometer prior to the addition of ethanol can be considered the initial absorbance. A 0 = 0.195 After 13 minutes of ethanol oxidation, the absorbance read by the spectrophot ometer can be considered the same as the
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