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

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# What common error did I do when I initially chose methyl red as the indicator? The table below may be helpful.
# 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?
# 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 solution, what is the pH at the equivalence point?
# Bonus: Assuming 0.500 g KHPhth, 20.00 mL water & 17.63 mL NaOH to neutralize, what is the pH at the equivalence point?
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'''This assignment is due Tuesday, September 9'''
'''This assignment is due Tuesday, September 9'''
==Introduction Assignment==
==Introduction Assignment==
'''The introduction is now due Tuesday, September 16'''
'''The introduction is now due Tuesday, September 16'''

Revision as of 20:50, 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

  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


This assignment is due Tuesday, September 9

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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