Qualitative Analysis - -11 Qualitative Analysis Author:...

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-11 Qualitative Analysis Author: Austin Kelly Lab Partners: Daniel Swanson, Kyle Roney, Brian Zilliox Supervisor: Sveta Enman Course: Chem. 104a Section 70 Dates of Execution: Sept 26 and Oct 3 Date of Submission: Oct. 10
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2 Introduction During the first week, the objective of the experiment was to produce a 0.1 M solution from a Salt. The solution that we were supposed to create was the Ni+2 solution from the salt. The process that was assigned to my partner and I was the Aluminon reaction. With this process, we were to do a spot test on the different items that we had previously labeled and placed in a well plate. A spot test consists of testing the eight provided cations and adding one or more reagents to them to see what product is left from the reaction. The nine reactions chosen were selected because they can be performed quickly, easily and safely. During the second week, the procedures that we were instructed to perform were just about the same complexity, just different methods. In this session, we were given a solution with four specific ions in it and were told to identify these ions using the various techniques that we had performed the week before. But, this time we were allowed to design and use a qualitative analysis scheme as well as a centrifuge. A centrifuge is used to separate solids from liquids with very high forces of centrifugal motion. This was key to the experiment because the flow chart and the qualitative analysis scheme depended on whether or not there were precipitates(solids) in the solution at any time in any state.
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6 Results During the first week, we were notified that we were to be using 0.1 molar solutions instead of the 0.6 molar solutions as instructed in our lab manuals. Also on a second note, we were instructed not to discard of the end solutions that we were to
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This note was uploaded on 09/17/2008 for the course CHEM 01 taught by Professor Keller during the Spring '08 term at University of Arizona- Tucson.

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Qualitative Analysis - -11 Qualitative Analysis Author:...

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