Problem: 100.0 mL of a natural water sample was titrated with NaOH. 13.91 mL of 0.1933 M NaOH solution was required to titrate the water sample to a light pink phenolphthalein endpoint. Calculate the number of millimoles of NaOH required for the titration.

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100.0 mL of a natural water sample was titrated with NaOH. 13.91 mL of 0.1933 M NaOH solution was required to titrate the water sample to a light pink phenolphthalein endpoint. Calculate the number of millimoles of NaOH required for the titration.

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