A 25.00-mL sample of a hydrochloric acid solution of unknown concentration is titrated with 0.1004 M NaOH.

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A 25.00-mL sample of a hydrochloric acid solution of unknown concentration is titrated with 0.1004 M NaOH. However, before the acid is titrated, 27.65 mL of water is added to it. The phenolphthalein indicator turns red after 28.70 mL of NaOH has been added. What is the concentration of the 25.00-mL sample of hydrochloric acid?

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Introductory Chemistry Atoms First

ISBN: 9780321927118

5th Edition

Authors: Steve Russo And Michael Silver

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