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Topic: strong acid determination using Ka concepts  (Read 3710 times)

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Offline iammrhappy

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strong acid determination using Ka concepts
« on: November 04, 2014, 06:58:44 PM »
Here is what I understand of the concept.


The larger the Ka value, the strong the acid.

So acid with Ka of 3.9 x 10^-3 is weaker than acid with Ka of 3.9 x 10^-2

The Ka values sort of throw me off.

Would like to confirm my understanding of this concept.


Thanks


Offline Borek

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Re: strong acid determination using Ka concepts
« Reply #1 on: November 05, 2014, 03:41:43 AM »
Your understanding is OK.
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Offline unsu

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Re: strong acid determination using Ka concepts
« Reply #2 on: December 02, 2014, 01:23:55 AM »
Also, the Shriver/Atkins textbook defines strong acids as those with pKa<0, or Ka > 1 (usually Ka >>1)
Weak acids are those with pKa>0, or Ka < 1 (usually Ka<<1)

The relative strength can be estimated by comparing Ka's

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