Find the $pOH$ value of $10^{-3} \ M \ NH_4OH$. Given $K_b = 10^{-5}$.
- A$9$
- B$6$
- C$4$
- D$10$
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Which of the following formulae is used to find the $[OH^{-}]$ ion concentration of a weak monoacidic base?
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Medium
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