A buffer solution is prepared which is 0.190 M both in lactic acid (CH3CHOHCO₂H) and in sodium lactate (CH3CHOHCO₂Na). Ka 1.38x10-4 for lactic acid. What is the pH of this solution? = 3.860 You are correct. Your receipt no. is 153-8423 Previous Tries When 1.96 mL of 0.100 M HCI is added to 12.0 mL of this buffer solution, what is resulting change in pH? 2.073 Submit Answer Incorrect. Tries 9/99 Previous Tries

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Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.