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Topic: Structure of neutral phenolphthalein  (Read 4505 times)

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brandileigh6769

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Structure of neutral phenolphthalein
« on: March 14, 2005, 07:08:48 PM »
Hey, I need to find the structure of neutral phenolphthalein as part of my lab report.  I have already found stuctures for the colorless acid form and the pink basic form, but I can't find the neutral form anywhere.  Please help. Thanks!
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Offline Mitch

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Re:Structure of neutral phenolphthalein
« Reply #1 on: March 14, 2005, 08:34:53 PM »
Quote
I have already found stuctures for the colorless acid form and the pink basic form

I know you must know your acid-base Chemistry well enough to answer your own question.
« Last Edit: March 14, 2005, 08:35:55 PM by Mitch »
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Offline AWK

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Re:Structure of neutral phenolphthalein
« Reply #2 on: March 15, 2005, 03:32:35 AM »
Phenolpthalein is colourless below pH=8 (approximate value), and what does it mean?
« Last Edit: March 15, 2005, 03:33:04 AM by AWK »
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