Quote Originally Posted by Kirk Keyes View Post
[Re: KOH pH...] here's the way to calculate it.

A 3% solution is about 0.53M KOH.
Calculate pOH first:
pOH = -log10[OH-]
Kirk,
How can I Calculate -log10 [whatever] on line?
I no longer have a scientific calculator...

Thanks

Ray
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ps, Sorry for the location of ths post... it should be in part 2 very confused... sorry ...