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Unformatted text preview: n in a second centrifuge tube.
2. Compare the color of the 2 solutions from Step 1-2 of Part II.
a. Are they the same?
3. Run several of the tests described in Part I side-by-side and compare.
a. Do they behave the same way?
b. Are the ppt colors exactly the same?
c. If so, then you have confirmed the cations in your unknown solution.
Complete your post-laboratory exercises for Part II! You will be asked for your
unknown # (based on locker #) and all the confirmed cations in that unknown. 37 38 Synthesis of a Transition Metal
In this experiment you will prepare a coordination compound of Cobalt(III) with the
bidentate ligand ethylenediamine (“en”; NH2CH2CH2NH2). Coordination compounds are
also called complexes, and if they are ions they are called complex ions. A complex ion
contains a central metal to which Lewis bases (ligands) have been attached or
coordinated. The purpose of this experiment is to provide an introduction to the field of
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This note was uploaded on 04/09/2013 for the course CHE CHE 2C taught by Professor Nasiri during the Spring '07 term at UC Davis.
- Spring '07