What you were given is the balanced chemical equation
That is not a question/problem and makes no sense whatsoever
#4 and #5:
To find pH given concentration of H+ or H30+
pH = - log (H+ or H30+ M)
To find pH given concentration of OH-
Since you already found the pH for this (in #4), you subtract #4's answer from 14.
14 - (pH) = pOH
Where is the table? I dont know what to classify
