What is the pH of a solution of the strong base NaOH?

Answer and explanation

Correct answer: B. 9

  1. Step 1: In a solution of strong base , complete dissociation gives .
  2. Step 2: Determine .
  3. Step 3: Find pH using .
Answer
9.
Why not the others: 5 is the pOH () rather than pH (); 19 adds 14 and pOH instead of subtracting (); 12 adds rather than subtracts the constant term in the final step.

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