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
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Transcribed Image Text:The molar mass of potassium hydrogen phthalate (KHC8H4O4,
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 (I1)
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