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 0.010 M solution of HClO is ________. A)1.7 × 10^-⁵ B)0.010 C)5.8 × 10^-1⁰ D)4.76 E)2.00

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Quizplus · Accepted Answer

The equilibrium concentration of H₃O⁺ can be calculated using the formula for the acid-dissociation constant (Ka = [H₃O⁺][ClO^-]/[HClO]). Solving for [H₃O⁺] in a 0.010 M solution of HClO with Ka = 3.0 × 10^-8 gives approximately 1.7 × 10^-5 M.

The Acid-Dissociation Constant at 25