What is the pH of a solution of the strong base NaOH?
Answer and explanation
Correct answer: A. 10
- Step 1: Sodium hydroxide () is a strong base that dissociates quantitatively in aqueous solution, yielding .
- Step 2: Compute the hydroxide potential: .
- 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.
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