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

Answer and explanation

Correct answer: A. 10

  1. Step 1: Sodium hydroxide () is a strong base that dissociates quantitatively in aqueous solution, yielding .
  2. Step 2: Compute the hydroxide potential: .
  3. Step 3: At , water equilibrium requires . Subtracting gives .
Answer
10.
Why not the others: 18 is an impossible pH value; 11 corresponds to ; 4 is the before subtracting from 14.

Practise more Ionic equilibrium.

Free questions with an explanation for every one, and full timed NEET UG mock tests.