8. A buffer is prepared with 0.34 M chloroacetic acid (weak acid; CH₂CICO₂H) and 0.62 M sodium chloroacetate (NaCH₂CICO2; a salt) at 25°C. What is the pH of the buffer, if 20 mL of 0.20 M HCI is added to 80 mL of the buffer? The Ka of chloroacetic acid is 1.3 x 10-3. Chloroacetic acid and the chloroacetate are conjugates.

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Chapter14: Equilibria In Acid-base Solutions
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2 ml of
8. A buffer is prepared with 0.34 M chloroacetic acid (weak acid; CH₂CICO₂H) and 0.62 M sodium
chloroacetate (NaCH₂CICO2; a salt) at 25°C. What is the pH of the buffer, if 20 mL of 0.20 M HCI is
added to 80 mL of the buffer? The K₂ of chloroacetic acid is 1.3 x 10-3. Chloroacetic acid and the
chloroacetate are conjugates.
Transcribed Image Text:on, then 1 2 ml of 8. A buffer is prepared with 0.34 M chloroacetic acid (weak acid; CH₂CICO₂H) and 0.62 M sodium chloroacetate (NaCH₂CICO2; a salt) at 25°C. What is the pH of the buffer, if 20 mL of 0.20 M HCI is added to 80 mL of the buffer? The K₂ of chloroacetic acid is 1.3 x 10-3. Chloroacetic acid and the chloroacetate are conjugates.
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