User:Douglas M. Fox/Notebook/AU CHEM-581 F2012 Lab Support/2012/08/28: Difference between revisions
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|style="background-color: #EEE"|[[Image:owwnotebook_icon.png|128px]]<span style="font-size:22px;"> Project | |style="background-color: #EEE"|[[Image:owwnotebook_icon.png|128px]]<span style="font-size:22px;"> Project 2: Solution Preparations</span> | ||
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== | |||
* | ==Solutions for use with IC and/or AA== | ||
Obtained fresh DI water (16.6 MΩ) for use in all solutions | |||
<br> | |||
#1 L 20 ppm SO<sub>4</sub><sup>2-</sup> as CuSO<sub>4</sub> | |||
#*Rinsed flask with conc. HCl (20 mL for 10 min, swirling & tilting) | |||
#*<font color="green">(Note: Chromic acid cleans glass best, but toxicity limits use) </font> | |||
#*Rinsed copiously with DI water | |||
#*Dried in oven 90 min at 110°C | |||
#*Used CuSO<sub>4</sub>·5H<sub>2</sub>O as received | |||
#*Cooled flask 20 min to room temperature | |||
#*0.05217 g CuSO<sub>4</sub>·5H<sub>2</sub>O (20.06 ppm SO<sub>4</sub><sup>2-</sup>, 13.24 ppm Cu<sup>2+</sup>) | |||
Revision as of 11:28, 5 September 2012
 Project 2: Solution Preparations
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Solutions for use with IC and/or AAObtained fresh DI water (16.6 MΩ) for use in all solutions
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