Problem: 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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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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