Which solution has the highest pH?
Answer and explanation
Correct answer: C. 0.1 M NaOH
- Step 1: NaOH is a strong base, so its solution has the highest pH.
- Step 2: HCl and acetic acid are acidic and pure water is neutral.
Answer
0.1 M NaOH.
Why not the others: The other solutions have lower pH.
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