User:Douglas M. Fox/Notebook/AU CHEM-571 F2011 Lab Support/2014/09/03: Difference between revisions

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==Tasklist==
==Tasklist==
# Redo kinetics experiment at 70 °C and take measurements every 20 min
#* you can keep same concentrations as you did last Wednesday
#* remember to use the polystyrene cuvettes
#* set the UV/VIS spectrometer to 70 °C
# Complete any titrations you did not complete yesterday
# Complete any titrations you did not complete yesterday
# Obtain spectra of your amino acid solutions
# Work on your introduction
# Work on your introduction
<br>
Note that I will be about a half an hour late to class.  You can start on your projects without me.
==Assignment==
'''This assignment is due Tuesday, September 9'''
<br>
# What is the volume reading for the liquid in the buret shown to the left?
# The titrant calibration could use wet glassware, but the amino acid titration was supposed to use dry glassware. Why?
# What common error did I do when I initially chose methyl red as the indicator? The table below may be helpful.
# Using phenolphthalein, at what pH will the standardization titration solution color change to a light pink color?
# Bonus: Assuming 0.500 g KHPhth, 20.00 mL water & 17.63 mL NaOH to neutralize, what is the pH at the equivalence point?
<br>
{|style="width:200px"
|&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
|<u>Indicator</u>
|<u>pKa</u>
|-
|&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
|methyl red
|5.1
|-
|&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
|bromothymol blue
|7.1
|-
|&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
|phenolphthalein
|9.7
|-
|}
==Introduction Assignment==
'''The introduction is now due Tuesday, September 16'''
<br><br>
<br><br>
Note that I will be about a half an hour late to class.  You can start on your projects without me.
Details:
* Complete individually
* The experiment is "Stability of protein mediated AuNPs: Equilibria with free proteins and biological cations"
* Utilize the literature search methods Rachel taught us
* 0.75 - 2 pages, single spaced
* Include:
*#prior studies (what is known)
*#unanswered questions (why we are conducting this experiment)
*#what will be conducted here (equilibrium dialysis using acid, protein, NaCl, CaCl<sub>2</sub>)


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Revision as of 20:53, 2 September 2014

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Tasklist

  1. Complete any titrations you did not complete yesterday
  2. Obtain spectra of your amino acid solutions
  3. Work on your introduction


Note that I will be about a half an hour late to class. You can start on your projects without me.

Assignment

This assignment is due Tuesday, September 9

  1. What is the volume reading for the liquid in the buret shown to the left?
  2. The titrant calibration could use wet glassware, but the amino acid titration was supposed to use dry glassware. Why?
  3. What common error did I do when I initially chose methyl red as the indicator? The table below may be helpful.
  4. Using phenolphthalein, at what pH will the standardization titration solution color change to a light pink color?
  5. Bonus: Assuming 0.500 g KHPhth, 20.00 mL water & 17.63 mL NaOH to neutralize, what is the pH at the equivalence point?


      Indicator pKa
      methyl red 5.1
      bromothymol blue 7.1
      phenolphthalein 9.7

Introduction Assignment

The introduction is now due Tuesday, September 16

Details:

  • Complete individually
  • The experiment is "Stability of protein mediated AuNPs: Equilibria with free proteins and biological cations"
  • Utilize the literature search methods Rachel taught us
  • 0.75 - 2 pages, single spaced
  • Include:
    1. prior studies (what is known)
    2. unanswered questions (why we are conducting this experiment)
    3. what will be conducted here (equilibrium dialysis using acid, protein, NaCl, CaCl2)


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