Re: Question about Kw, Ka



On Fri, 29 Jul 2005 01:06:21 +0200, Hikaru <none@xxxxxxxxxxxxx> wrote:

I was wondering if I had the Ka value of some molecule, will I always be
able to find the Kb value using the Kw value, assuming everything is at 25 C, because Kw = 10^-14 only at 25 C, right?

Right.

http://www.chembuddy.com/?left=pH-calculation&right=bronsted-lowry-theory

I asked someone about this and they said no, Kw varies for each molecule.

Don't ask him/her question anymore :)

I went home and thought about it but it doesn't make sense for Kw to vary
for each molecule, but it does vary for temperature.

Right.

Best,
Borek--

--
http://www.chembuddy.com - chemical calculators for labs and education
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CASC - Concentration and Solution Calculator
pH lectures - guide to hand pH calculation with examples
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