What is the pH of a 10^-5 mol/L solution of a strong base like NaOH at 25 degrees Celsius?
Answer and explanation
Correct answer: D. 9
- Step 1: [OH-] = 10^-5, so pOH = 5.
- Step 2: pH = 14 - 5 = 9.
Answer
9.
Why not the others: 5, 10 and -5 do not fit.
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