Question

.12M Lactic Acid (HC3H5O3, Ka=1.4x10^-4) is mixed with .10M NaC3H5O3 to form 1.00L solution.

A. Calculate the pH of the solution after the addition of 50.0mL of 1.00M NaOH.
B. Calculate the pH of the solution after the addition of 120.0mL of 1.00M NaOH.
It would be nice to know how much lactic acid and how much sodium acetate were used to make the 1 L of solution.
it doesn't say :(. that's the problem word-for-word

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