What is the pH of a 0.01 mol/L solution of hydrochloric acid?
Answer and explanation
Correct answer: A. 2
- Step 1: HCl is a strong acid, so [H+] is 0.01 mol/L. Step 2. pH = -log(0.01) = 2. Answer: 2. Why not the others: 1 would need 0.1 mol/L, 3 would need 0.001 mol/L and 12 is basic.
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