Answer to Question #89897 in General Chemistry for Kyle O'Neill

General Chemistry

Question #89897

What is the pH of 0.00028 M KOH? Is this solution acidic, basic, or neutral?

Expert's answer

"[KOH]=[OH-]=0.00028 mol\/L"

"[H3O+][OH-]=Kw"

"[H3O+]=Kw\/[OH-]=1* 10^{-14}\/0.00028=3.57*10^{-11}"

"pH=-log[H3O+]=-log(3.57*10^{-11})=-10.45"

It is basic solution

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