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Part A.What is the H+ concentration for an aqueous solution with pOH = 3.54 at 25...

Part A.What is the H+ concentration for an aqueous solution with pOH = 3.54 at 25 ∘C?

Part B. At a certain temperature, the pH of a neutral solution is 7.42. What is the value of Kw at that temperature?

Part C. The pKb of pyridine is 8.75. What is the pH of a 0.250 M solution of pyridine? (Assume that the temperature is 25 ∘C.)

Part D. The pKa of this reaction is 4.2. In a 0.78 M solution of benzoic acid, what percentage of the molecules are ionized?

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