User:Elizabeth Ghias/Notebook/Experimental Chemistry/2012/09/19: Difference between revisions
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<u>20 ppm CuSO<sub>4</sub> Solution Preparation</u> | <u>20 ppm CuSO<sub>4</sub> and Na<sub>2</sub>SO<sub>4</sub> Solution Preparation</u> | ||
* 500 mL of 20 ppm CuSO<sub>4</sub> solution | * 500 mL of 20 ppm CuSO<sub>4</sub> solution and 500 mL of 20 ppm Na<sub>2</sub>SO<sub>4</sub> solution were prepared. | ||
<s>*200 g Na2So4, 1L H2O stirred to dissolution + 20ml H2 So4 </s> | |||
<s>*MW CuSO4 * 5 H20= 249.67 g/mole 20 ppm in 500ml H2O MW= 18 g/mol (500g of h20/18g/mol=27.7moles) </s> | |||
<s>**27.7moles h2O* ((20moles cuso4*5H2O)/1,000,000 moles H2O) = 5.55 E -4 moles Cuso4*5molesH20 </s> | |||
<s>**5.55E-4moles CuSo4*5H2O * 249.68 g/mol= 0.1387g CuSo4*5H2O </s> | |||
<s>**5.55E-4moles Na2SO4 * 142.04g/mol=0.078 (20ppm) </s> | |||
<s>*we want 500ml of 20ppm = 20mg/l CuSO4</s> | |||
<s>** 277.4mg/l*x=.5*20mg/l</s> | |||
<s>** x=36.05ml in total 100ml solution</s> | |||
<s>* we want 500ml of 20ppm= 20mg/l Na2SO4</s> | |||
<s>** 156.8 mg/l x = .5(20mg/L)v | |||
<s>** x= 63.78ml in total 100ml solution</s> | |||
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==Notes== | ==Notes== | ||
* The copper sulfate and sodium sulfate solutions prepared were incorrect. See October 5 for correct calculations | |||
Revision as of 09:26, 7 November 2012
Experimental Chemistry | <html><img src="/images/9/94/Report.png" border="0" /></html> Main project page <html><img src="/images/c/c3/Resultset_previous.png" border="0" /></html>Previous entry<html> </html>Next entry<html><img src="/images/5/5c/Resultset_next.png" border="0" /></html> |
ObjectiveTo crosslink the prepared glutaraldehyde film, make additional glutaraldehyde film and glutaraldehyde film with PDMS, prepare 500 mL of 20 ppm CuSO solution and NaSO4 solution, and dry clays DescriptionCrosslinking Glutaraldehyde Films
DataMass of glutaraldehyde film after crosslinking = 0.8059 g
Notes
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