What is the pH of a 0.001 M solution of hydrochloric acid?
Answer and explanation
Correct answer: D. 3
- Step 1: HCl is a strong acid, so [H+] = 0.001 M. Step 2. pH = -log(0.001) = 3. Answer: 3. Why not the others: Nitric acid, hydrochloric acid, and hydrobromic acid are strong mineral acids that dissociate completely in aqueous solution, whereas acetic acid dissociates only partially.
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