1) Using the measured pH, calculate the concentration of H3O+ and OH- at the equivalence point. 2) If the theoretical pKa of KHP is 5.4, calculate the percent error using your experimental pKa value. Trial 1Initial Burette1mlReading (mL)Endpoint (mL)11.75 mlEndpoint (pH)12.91Equivalence point(mL)10.56 mlEquivalence point(рH)6.965.28 mlHalf the Equivalencepoint Volume (mL)pKaMass of KHP.507gMass of NaOH.400g

Answered: 1) Using the measured pH, calculate the…

Chemistry

10th Edition

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

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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1) Using the measured pH, calculate the concentration of H3O+ and OH- at the equivalence point. 2) If the theoretical pKa of KHP is 5.4, calculate the percent error using your experimental pKa value.

Trial 1
Initial Burette
1ml
Reading (mL)
Endpoint (mL)
11.75 ml
Endpoint (pH)
12.91
Equivalence point
(mL)
10.56 ml
Equivalence point
(рH)
6.96
5.28 ml
Half the Equivalence
point Volume (mL)
pKa
Mass of KHP
.507g
Mass of NaOH
.400g

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