User:Alicia Rasines Mazo/Notebook/CHEM-581 Experimental Chemistry I/2014/09/19: Difference between revisions
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* 1.0044 g 22,000 MW PVA and 0.1104 g Na Montmorillonite were used for the synthesis of 10% w/w PVA-Clay polymer film. | * 1.0044 g 22,000 MW PVA and 0.1104 g Na Montmorillonite were used for the synthesis of 10% w/w PVA-Clay polymer film. | ||
===Measuring the Absorbance of Mercury and Arsenic=== | |||
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| align="center" style="background:#f0f0f0;"|'''Film''' | | align="center" style="background:#f0f0f0;"|'''Film''' | ||
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* Note: in order to make up the specified dilutions (Table above) of As and Hg, dilutions of stock solutions were prepared. | |||
* James' group prepared the arsenic dilutions | |||
*Madeleine and I prepared the mercury dilutions | |||
*Dilutions: | |||
**0.0499 mol As/L × 74.921 g As/mol × 1000 mg/g = 3738.56 mg/L = 3738.56 ppm | |||
*#(3738.56 ppm)(V)=(150ppm)(50mL) | |||
*#*2mL in 50mL volumetric | |||
*#(3738.56 ppm)(V)=(100ppm)(50mL) | |||
*#*1.34mL in 50mL volumetric | |||
*#(3738.56 ppm)(V)=(50ppm)(50mL) | |||
*#*0.668mL in 50mL volumetric | |||
**268 ppm Hg (13.4 mM HgCl<sub>2</sub>) | |||
*#(268 ppm)(V)=(150 ppm)(50mL) | |||
*#*27.98mL in 50mL volumetric | |||
*#(268 ppm)(V)=(100 ppm)(50mL) | |||
*#*18.66mL in 50mL volumetric | |||
*#(268 ppm)(V)=(50 ppm)(50mL) | |||
*#*9.33mL in 50mL volumetric | |||
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Revision as of 10:39, 19 September 2014
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Tasks for 19 September
New film synthesis
Measuring the Absorbance of Mercury and Arsenic
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