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A 25.0-mL sample of 0.100 M lactic acid (HC,H,O3, pK, = 3.86) is titrated with 0.100 M NaOH solution. Calculate the pH after the

A 25.0-mL sample of 0.100 M lactic acid (HC,H,O3, pK, = 3.86) is titrated with 0.100 M NaOH solution. Calculate the pH after the addition of a. 0.0 mL of the NaOH. b. 4.0 mL of the NaOH.

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