Calculate the pH of a buffer solution that contains 0.25 M chloroacetic acid (ClCH2CO2H) and 0.15 M sodium chloroacetate (ClCH2CO2Na). [Ka = 1.4 × 10–3 for chloroacetic acid]
A) 3.07 B) 2.85 C) 4.19 D) 2.63 E) 4.41
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