Here's why:

* pOH is the negative logarithm of the hydroxide ion concentration ([OH-]): pOH = -log[OH-]

* Strong bases have high hydroxide ion concentrations: This means their pOH values are low, closer to 0.

* Weak bases have lower hydroxide ion concentrations: Their pOH values are higher, closer to 14.

Key points:

* The pOH scale is inversely related to the pH scale: pOH + pH = 14.

* A pOH of 7 represents a neutral solution: Just like a pH of 7.

* A pOH less than 7 indicates a basic solution: Just like a pH greater than 7.

* A pOH greater than 7 indicates an acidic solution: Just like a pH less than 7.

Remember that the pOH scale is just a different way to express the acidity or basicity of a solution.