Answer:
-0.398
Explanation:
pOH is a measure of hydroxide ion (OH-) concentration in a solution. A basic solution If a solution has pOH less than 7 then it is a basic solution and if pOH is greater than 7 then it is an acidic solution. Neutral solutions have pOH equal to 7.
[tex]pOH=-\log \left [ OH^- \right ][/tex]
To find pOH of 2.5 M NaOH, solve [tex]pOH=-\log \left [ 2.5 \right ][/tex] = -0.398
