A 20.00 mL aliquot of lactic acid solution (HCH3H5O3) was titrated with 0.0980 M KOH(aq) using both an indicator and a pH meter. Ka (HCH3H5O3), is 1.38 x10-4. A total of 28.64 mL of 0.0980 M KOH(aq) was required to reach the equivalence point 1. Calculate the molarity of the lactic acid solution.  2. Calculate the pH of the lactic acid solution 3. Calculate the pH and [CH3H5O3-] at the half-equivalence point.

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A 20.00 mL aliquot of lactic acid solution (HCH3H5O3) was titrated with 0.0980 M KOH(aq) using both an indicator and a pH meter. Ka (HCH3H5O3), is 1.38 x10-4. A total of 28.64 mL of 0.0980 M KOH(aqwas required to reach the equivalence point

1. Calculate the molarity of the lactic acid solution.

 2. Calculate the pH of the lactic acid solution

3. Calculate the pH and [CH3H5O3-] at the half-equivalence point.

4. Calculate the pH at the equivalence point of the titration.

5. Suggest an appropriate indicator for titration.

6. Calculate the pH of the solution after 10.00 mL of 0.0980 M NaOH(aq) was added

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