Answer : The pOH of KOH solution is, 2.235
Solution : Given,
Concentration of [tex]OH^-[/tex] ion = [tex]5.81\times 10^{-3}M[/tex]
As we know that,
[tex]pOH=-\log [OH^-][/tex]
Now put the value of [tex]OH^-[/tex] ion concentration, we get the pOH.
[tex]pOH=-\log (5.81\times 10^{-3}M)[/tex]
[tex]pOH=2.235[/tex]
Therefore,the pOH of KOH solution is, 2.235
