Homework Help: Chemistry

Posted by KHNJ on Wednesday, February 14, 2007 at 3:29pm.

What is the pH of a solution with [OH-] = 2.5 x 10-3?

I don't even know where to begin with this problem :(

You know [OH] + [H+] = 1*10^-14

so solve for [H+], then pH= -log [H+]

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