chem lab 4 - Qualitative Analysis Author Amber Bellafiore...

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

View Full Document Right Arrow Icon
Qualitative Analysis Author: Amber Bellafiore Lab Partner: Tracey Beyer Instructor: Zhen Li Chem 104A Section 17 Date Work Performance: Sept 24 th and October 1st Date Report Submitted: October 8 th Abstract The results for this lab were inconclusive due to error. During spot testing, contamination and inexact measurements can alter the reactions causing different groups to have different observations, and therefore different separation schemes. With our separation scheme test, the test solutions became contaminated and the only result received was a white liquid which was not what was expected from our separation scheme thus proving our scheme was ineffective. For more experiments to be run, better conditions would be needed a swell as more precise measurements.
Image of page 1

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

View Full Document Right Arrow Icon
Introduction In the Qualitative Analysis lab, the objectives of the experiment are to determine which of the eight cations can be detected through the different spot tests, and to then determine which reactions can create a separation scheme and which can be used as confirmation tests. To achieve this, first spot tests are preformed and observations are made about the cation reactions, paying close attention to which cations change from dissolved materials into solids. The technical term for the change of dissolved liquids into solids is precipitation. In this lab, four chemical reactions will be used to cause cations to precipitate; oxidation-reduction reactions, acid-base reactions, precipitation reactions, and complex-ion formation reactions. After this is completed a separation scheme is made to
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