What is the pH of a aqueous solution of strong hydrochloric acid () at ?
Answer and explanation
Correct answer: C.
- Step 1: Recognize that is a strong monoprotic acid that dissociates completely in water: .
- Step 2: Apply the pH definition formula: .
- Step 3: Calculate: .
Answer
.
Why not the others: '' corresponds to ; '' corresponds to ; '' corresponds to .
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