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What is the pOH of an aqueous solution of .243 M hydrochloric acid? What is the...

What is the pOH of an aqueous solution of .243 M hydrochloric acid?

What is the pH of an aqueous solution of 2.47x10^-2 M perchlorate acid?

What is the pH of an aqueous solution of 4.37x10^-2 M potassium hydroxide?
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mdasd pO.GI43 Leg 24 1.6010 Stum

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