The pH of a water sample is found to be 6.3. It is titrated with 4.5mL of 0.02 N NaOH to a pH of 8.3. (the phenolphthalein endpoint). Calculate the acidity as mg/L CaCO3. Use the same equation as for alkalinity.

The pH of a water sample is found to be 6.3. It is titrated with 4.5mL of 0.02 N NaOH to a pH of 8.3. (the phenolphthalein endpoint). Calculate the acidity as mg/L CaCO3. Use the same equation as for alkalinity.

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter21: Potentiometry

Section: Chapter Questions

Problem 21.22QAP

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Question

The pH of a water sample is found to be 6.3. It is
titrated with 4.5mL of 0.02 N NaOH to a pH of
8.3. (the phenolphthalein endpoint). Calculate
the acidity as mg/L CACO3. Use the same
equation as for alkalinity.

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