pKa

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NiceGirl761
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pKa

Post by NiceGirl761 »

Is there an easy indicator to test for the pKa of substances?
deleted-71882
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Re: pKa

Post by deleted-71882 »

Hello NiceGirl761,

A very easy to measure and very common measure of acide dissociation is pH. pH and pKa are not the same. Anice article about the relations between the two measures is at

http://www.columbia.edu/~crg2133/Files/ ... itykPa.pdf.

If you take care to compensate for the differences, you should be able to convert pH to pKa.

Another more complicated method is discussed at http://www.chemagine.co.uk/resources/pka.htm.

The best and easiest method depends on what acid you are interested in and how concentrated is your solution.

Good luck, WW
NiceGirl761
Posts: 18
Joined: Sat Feb 16, 2013 2:56 pm
Occupation: Student: 9th grade
Project Question: Investigating Reactivity of Plastics with Commonly Consumed Beverages
Project Due Date: 3/2/13
Project Status: I am just starting

Re: pKa

Post by NiceGirl761 »

Thanks!
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