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Calculate the pH of 1.28×10−3 M KOH.

thanks.

3 answers

1.28×10^−3
OH^- = 1.28E-3
Then pOH = 2.89 and
pH + pOH = pKw = 14
pH = 14-2.89 = 11.11
What is the pH of a 5.91 x 10-3 M solution of HCl?
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