Determine the pH during the titration of 33.6 mL of 0.231 M triethylamine ((C2H5)3N, Kb = 5.2\times 10-4) by 0.231 M HNO3 at the following points. (a) Before the addition of any HNO3 (b) After the addition of 12.5 mL of HNO3 (c) At the titration midpoint (d) At the equivalence poin (e) After adding 49.4 mL of HNO3

Determine the pH during the titration of 33.6 mL of 0.231 M triethylamine ((C2H5)3N, Kb = 5.2\times 10-4) by 0.231 M HNO3 at the following points. (a) Before the addition of any HNO3 (b) After the addition of 12.5 mL of HNO3 (c) At the titration midpoint (d) At the equivalence poin (e) After adding 49.4 mL of HNO3

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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Concept explainers

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.

Question

Determine the pH during the titration
of 33.6 mL of 0.231 M triethylamine
((C2H5)3N, Kb = 5.2\times 10-4)
by 0.231 M HNO3 at the following
points. (a) Before the addition of any
HNO3 (b) After the addition of 12.5
mL of HNO3 (c) At the titration.
midpoint (d) At the equivalence point
(e) After adding 49.4 mL of HNO3

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Step 1: Interpretation of datas :

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Step 2: (a) Determination of pH before addition of HNO3.

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Step 3: (b) Determination of pH after addition of 12.5 mL HNO3.

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Step 4: (c) Determination pH at titration midpoint.

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Step 5: (d) Determination pH at equivalence point.

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Step 6: (e) Determination pH after addition of 49.4 mL HNO3.

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