What is the pH of a 3.0 × 10⁻⁵ M aqueous solution of H₂SO₄? A) 4.2 B) 2.4 C) 3.0 D) 0.3 E) -0.3

Name: What is the pH of a 3.0 × 10 −5 M aqueous solution of H 2 SO 4 ? A) 4.2 B) 2.4 C) 3.0 D) 0.3 E) -0.3
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Quizplus · Accepted Answer

H₂SO₄ is a strong acid, so it completely dissociates in water. The pH of a solution is calculated using the formula pH = -log[H+], where [H+] is the molar concentration of hydrogen ions in the solution. In this case, [H+] = 3.0 × 10⁻⁵ M, so pH = -log(3.0 × 10⁻⁵) = 4.2.

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