User:Allison K. Alix/Notebook/CHEM-581/2012/10/24

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==Description==
==Description==
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#UV-Vis Spectra of ''porphyrin solutions'' with the following concentrations were collected:
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## 25μM
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## 12.5μM
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## 6.75μM
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## 3.375μM
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## 1.6875μM
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# 10 mL 50 μM of the following ''sulfate solutions'' were prepared:
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## Na<sub>2</sub>SO<sub>4</sub>
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## Fe<sub>2</sub>(SO<sub>4</sub>)<sub>3</sub>
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## Al<sub>2</sub>(SO<sub>4</sub>)<sub>3</sub>
==Data==
==Data==
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* Add data and results here...
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<div class="center" style="width:auto; margin-left:auto; margin-right:auto;">Preparation of 50 μM Na<sub>2</sub>SO<sub>4</sub></div>
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<math> \frac {142.07 g} {mol} \times \frac {50mmol} {L} \times \frac {10^-3 mol} {1mmol} \times \frac {1 L} {1000mL} \times 10mL = 0.071035 g</math>
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0.071035 g Na<sub>2</sub>SO<sub>4</sub> in 10mL H<sub>2</sub>O to prepare 50mM. Dilute to 50μM by using 10μL 50mM in 9.99mL H<sub>2</sub>O.
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----
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<div class="center" style="width:auto; margin-left:auto; margin-right:auto;">Preparation of 50 μM 72 wt% Fe<sub>2</sub>(SO<sub>4</sub>)<sub>3</sub></div>
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<math> \frac {72} {100} \times \frac {399.88 g} {mol} \times \frac {50mmol} {L} \times \frac {10^-3 mol} {1mmol} \times \frac {1L} {1000mL} \times \frac 10mL = 0.144g </math>
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0.144 g 72 wt% Fe<sub>2</sub>(SO<sub>4</sub>)<sub>3</sub> in 10mL H<sub>2</sub>O to prepare 50mM. Dilute to 50μM by using 10μL 50mM in 9.99mL H<sub>2</sub>O.
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----
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<div class="center" style="width:auto; margin-left:auto; margin-right:auto;">Preparation of 50 μM Al<sub>2</sub>(SO<sub>4</sub>)<sub>3</sub></div>
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<math> \frac {656.33 g} {mol} \times \frac {50mmol} {L} \times \frac {10^-3 mol} {1mmol} \times \frac {1L} {1000mL} \times 10mL = 0.328g </math>
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0.328 g Al<sub>2</sub>(SO<sub>4</sub>)<sub>3</sub> in 10mL H<sub>2</sub>O to prepare 50mM. Dilute to 50μM by using 10μL 50mM in 9.99mL H<sub>2</sub>O.
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----
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[[Image:GraphPorphyrinSolutions.png]]
==Notes==
==Notes==

Current revision

Experimental Chemistry Main project page
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Objective

  • Take UV-Vis of porphyrin solutions
  • Re-do crosslinking of porphyrin films
  • Prepare sulfate solutions

Description

  1. UV-Vis Spectra of porphyrin solutions with the following concentrations were collected:
    1. 25μM
    2. 12.5μM
    3. 6.75μM
    4. 3.375μM
    5. 1.6875μM
  2. 10 mL 50 μM of the following sulfate solutions were prepared:
    1. Na2SO4
    2. Fe2(SO4)3
    3. Al2(SO4)3

Data

Preparation of 50 μM Na2SO4

 \frac {142.07 g} {mol} \times \frac {50mmol} {L} \times \frac {10^-3 mol} {1mmol} \times \frac {1 L} {1000mL} \times 10mL = 0.071035 g

0.071035 g Na2SO4 in 10mL H2O to prepare 50mM. Dilute to 50μM by using 10μL 50mM in 9.99mL H2O.


Preparation of 50 μM 72 wt% Fe2(SO4)3

 \frac {72} {100} \times \frac {399.88 g} {mol} \times \frac {50mmol} {L} \times \frac {10^-3 mol} {1mmol} \times \frac {1L} {1000mL} \times \frac 10mL = 0.144g

0.144 g 72 wt% Fe2(SO4)3 in 10mL H2O to prepare 50mM. Dilute to 50μM by using 10μL 50mM in 9.99mL H2O.


Preparation of 50 μM Al2(SO4)3

 \frac {656.33 g} {mol} \times \frac {50mmol} {L} \times \frac {10^-3 mol} {1mmol} \times \frac {1L} {1000mL} \times 10mL = 0.328g

0.328 g Al2(SO4)3 in 10mL H2O to prepare 50mM. Dilute to 50μM by using 10μL 50mM in 9.99mL H2O.




Image:GraphPorphyrinSolutions.png

Notes

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


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