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A) The (H+) in a solution is 6.8 x 10-3 M. What is the pH?

B) The pH of a solution is 3.70. What is the (H+)? What are (OH-) and pOH?

C) The Ka for Hypochlorus acid, HCIO, is 7.2 x 10-4 at 25 oC. What is pKa? Write the equation for the reaction to which Ka applies.

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