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Posted by on Sunday, January 11, 2009 at 9:42am.

What is the pH of the solution that results from mixing 5 ml of 0.2 M NaOH and 100 mL of 0.05 M lactic acid? (Pka of lactic acid= 3.86)

  • Biochemistry - , Sunday, January 11, 2009 at 10:21am

    Use the Henderson-Hasselbalch equation. Th e mixture you have indicated will react to form a buffer, the base will be the sodium lactate and the acid will be the lactic acid not neutralized by the NaOH. Post your work if you get stuck.

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