What is the pH of a 4.9 M solution of HClO₄? A) 14.69 B) 0.69 C) -0.69 D) 13.31 E) minus infinity

Name: What is the pH of a 4.9 M solution of HClO 4 ? A) 14.69 B) 0.69 C) -0.69 D) 13.31 E) minus infinity
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HClO4 (perchloric acid) is a strong acid, meaning it completely dissociates in water. The pH is calculated using the formula pH = -log[H+], where [H+] is the concentration of hydrogen ions. For a 4.9 M solution of HClO4, [H+] = 4.9, so pH = -log(4.9) ≈ -0.69.

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