The mass of KHC8H4O4 is measured to the nearest milligram; however, the volume of water in which it is dissolved is never of concern—water is even added to the wall of the Erlenmeyer flask during the titration

Chemistry May 19, 2021

The mass of KHC8H4O4 is measured to the nearest milligram; however, the volume of water in which it is dissolved is never of concern—water is even added to the wall of the Erlenmeyer flask during the titration. Explain why water added to the KHC8H4O4 has no effect on the data, whereas water added to the NaOH solution may drastically affect the data.

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Answer:

Water added to the KHC₈H₄O₄ has no effect because it doesn't affect its molar concentration because it's hygroscopic, whereas water added to NaOH would greatly affect molar concentration because it is not hygroscopic.

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