User:Elaine Marie Robbins/Notebook/CHEM-496/2012/03/20: Difference between revisions

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|style="background-color: #EEE"|[[Image:BDLlogo_notext_lr.png|128px]]<span style="font-size:22px;"> Determining Au<sup>+3</sup> Concentration</span>
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==Objective==


To determine the concentration of Au<sup>+3</sup> left unreacted in solution in the fiber solution synthesized on [[User:Elaine Marie Robbins/Notebook/CHEM-496/2012/02/29 |02/29/12]] using electrochemistry.


==Description==


# Make the following dilutions of chloroauric acid:
#* 5.00 mM
#* 1.00 mM
#* 500 μM
#* 100 μM
#* 50.0 μM
#* 10.0 μM
#* 5.00 μM
#* 1.00 μM
#* 500 nM
#* 100 nM
# Add 0.5 mL of 0.5 M KNO<sub>3</sub> to each solution.
# Run cyclic voltammetry using glassy carbon electrodes as both working and reference electrodes.


==Objective==
==Data==
*Add your objective here
stuff [[User:Matt Hartings|Matt Hartings]] 21:41, 6 September 2011 (EDT)


==Description==
* Graph of current vs applied potential of each dilution of Au<sup>+3</sup>:
*Add description here
more stuff [[User:Matt Hartings|Matt Hartings]] 21:43, 6 September 2011 (EDT)


==Data==
<center>[[Image:Current vs applied potential 3-20-12.png]]</center>
* Add data and results here...


==Notes==
==Notes==
This area is for any observations or conclusions that you would like to note.


Use categories like tags. Change the "Course" category to the one corresponding to your course. The "Miscellaneous" tag can be used for particular experiments, as instructed by your professor. Please be sure to change or delete this tag as required so that the categories remain well organized.
Detection limit for glassy carbon electrodes is not low enough to determine concentration of Au<sup>+3</sup> in fiber solution.


[[Category:Course]]
[[Category:Course]]
[[Category:Miscellaneous]]
[[Category:Miscellaneous]]




Revision as of 11:25, 21 March 2012

Determining Au+3 Concentration <html><img src="/images/9/94/Report.png" border="0" /></html> Main project page
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Objective

To determine the concentration of Au+3 left unreacted in solution in the fiber solution synthesized on 02/29/12 using electrochemistry.

Description

  1. Make the following dilutions of chloroauric acid:
    • 5.00 mM
    • 1.00 mM
    • 500 μM
    • 100 μM
    • 50.0 μM
    • 10.0 μM
    • 5.00 μM
    • 1.00 μM
    • 500 nM
    • 100 nM
  2. Add 0.5 mL of 0.5 M KNO3 to each solution.
  3. Run cyclic voltammetry using glassy carbon electrodes as both working and reference electrodes.

Data

  • Graph of current vs applied potential of each dilution of Au+3:

Notes

Detection limit for glassy carbon electrodes is not low enough to determine concentration of Au+3 in fiber solution.



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