Experiment8 copy - Experiment#8 The Spectrochemical Series...

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

View Full Document Right Arrow Icon
Experiment #8: The Spectrochemical Series
Image of page 1

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

View Full Document Right Arrow Icon
Purpose: The purpose of this experiment was to synthesize one of two cobalt complexes, A or B. Following synthesis, the wavelengths of absorbance of the synthesized complex (A in this experiment), the other cobalt complex (B), synthesized by other groups, and additional complexes C, D, and E were measured with a spectrometer. The collected data and the spectrochemical series were used to identify all five cobalt complexes. Results and Discussion: In this experiment, cobalt complex A was synthesized according to the procedure on page 54 of the Chemistry 207 Lab Manual. 5 grams (g) of cobalt salt was dissolved in 7 milliliters (mL) of H 2 O in a beaker. The solution was combined with 16 g NH 4 Cl and 16 mL of NH 4 OH. 4 mL of 30% H 2 O 2 were slowly added. The mix was placed on a steam bath until it reached 55 degrees Celsius (C), cooled, and vacuum filtered. During filtration, the complex was washed 3 times with 5 mL of H 2 O, and than 3 times with 5 mL acetone.
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