Question

1) The pH of an aqueous solution at 25°C was found to be 13.00.
The pOH of this solution is ___
The hydronium ion concentration is ____M.
The hydroxide ion concentration is ____M.

2) The hydronium ion concentration in an aqueous solution at 25°C is 3.6×10^-2M.
The hydroxide ion concentration is  M.
The pH of this solution is ____.
The pOH is _____ .

3) What is the pOH of an aqueous solution of 0.467 M hydrochloric acid?
pOH = ___

4) What is the pH of an aqueous solution of 4.67×10^-2 M hydroiodic acid?
pH = ___

5) In the laboratory, a general chemistry student measured the pH of a 0.581 M aqueous solution of hypochlorous acid to be 3.831.
Use the information she obtained to determine the K_a for this acid.
K_a(experiment)= ____

6) In the laboratory, a general chemistry student measured the pH of a 0.581 M aqueous solution of acetylsalicylic acid (aspirin), HC₉H₇O₄ to be 1.895.
Use the information she obtained to determine the K_a for this acid.
K_a(experiment) = ____