Calculate the pH of a 0.055 M solution of CH₃COONa. (K_a(CH₃COOH) = 1.8 x 10^-5) A) 12.74 B) 4.74 C) 8.74 D) 9.26 E) 5.26

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CH₃COONa is a salt of a weak acid (CH₃COOH) and a strong base (NaOH). It hydrolyzes in water to form CH₃COO⁻, which reacts with water to form OH⁻, making the solution basic. The pH can be calculated using the formula pH = 14 - 0.5(pKa - log C), where C is the concentration of the salt. This gives a pH of approximately 8.74.

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