The Acid-Dissociation Constant at 25

question 65

Multiple Choice

The acid-dissociation constant at 25.0 °C for hypochlorous acid (HClO) is 3.0 × 10^-8 . At equilibrium, the molarity of H₃O⁺ in a 0.030 mol L^-1 solution of HClO is ________.

• A) 1.52 mol L^-1
• B) 3.3 × 10^-10 mol L^-1
• C) 4.52 mol L^-1
• D) 0.030 mol L^-1
• E) 3.0 × 10^-5 mol L^-1

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