The molar mass of potassium hydrogen phthalate (KHC3H4O4, abbreviation KHP) is 204.22 grams per mole. To determine the molarity of an unknown NaOH solution, a student weighed out 1.32 g of solid KHP and dissolved the solid in 25.4 mL of DI water. The resulting solution was used in a titration with the unknown NaOH solution (3 drops of phenolphthalein was used as an indicator). The balance chemical equation is given below. If the student used 24.71 mL of the unknown NaOH solution in the titration, what is the molarity of the NaOH solution? Keep the correct number of significant figures. KHP (aq) + NaOH (aq) --> KNaP (aq) + H2O (1)

The molar mass of potassium hydrogen phthalate (KHC3H4O4, abbreviation KHP) is 204.22 grams per mole. To determine the molarity of an unknown NaOH solution, a student weighed out 1.32 g of solid KHP and dissolved the solid in 25.4 mL of DI water. The resulting solution was used in a titration with the unknown NaOH solution (3 drops of phenolphthalein was used as an indicator). The balance chemical equation is given below. If the student used 24.71 mL of the unknown NaOH solution in the titration, what is the molarity of the NaOH solution? Keep the correct number of significant figures. KHP (aq) + NaOH (aq) --> KNaP (aq) + H2O (1)

Chemistry: Principles and Practice

3rd Edition

ISBN:9780534420123

Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Chapter12: Solutions

Section: Chapter Questions

Problem 12.107QE

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