What is the pH of a buffer solution that is 0.172 M in hypochlorous acid (HClO)and 0.131 M in sodium hypochlorite? The K_a of hypochlorous acid is 3.8 × 10^-⁸. A)14.12 B)6.70 C)9.07 D)7.54 E)7.30

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The pH of a buffer solution can be calculated using the Henderson-Hasselbalch equation: pH = pKa + log([A-]/[HA]). Here, pKa = -log(3.8 × 10^-8) ≈ 7.42. Plugging in the concentrations, pH = 7.42 + log(0.131/0.172) ≈ 7.30.

What Is the PH of a Buffer Solution That Is