When titrating 25 mL of an approximately 0.1 M solution of a triprotic acid solution with 0.1052 M NaOH, a student calculates that the end point will be reached after the addition of approximately x mL of NaOH.However, after the addition of 2x mL of sodium hydroxide, no colour change is observed. Which of the following errors could not account for this obervation? using a 3 mole acid : 1 mole base ratio in the calculation washing the sides of the flask with DI water during the titration and diluting the analyte solution mistakenly using a 0.01000 M NaOH solution in the titration failing to add an indicator to the analyte solution mistakenly using a primary standard solution of > 1.0 M in the titration

Let the triprotic acid be H3A. The balanced equation for the neutralization is: H3A + 3NaOH(aq)…

Answered: When titrating 25 mL of an…

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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When titrating 25 mL of an approximately 0.1 M solution of a triprotic acid solution with 0.1052 M NaOH, a student calculates that the end point will be reached after the addition of approximately x mL of NaOH.

However, after the addition of 2x mL of sodium hydroxide, no colour change is observed. Which of the following errors could not account for this obervation?

		using a 3 mole acid : 1 mole base ratio in the calculation
		washing the sides of the flask with DI water during the titration and diluting the analyte solution
		mistakenly using a 0.01000 M NaOH solution in the titration
		failing to add an indicator to the analyte solution
		mistakenly using a primary standard solution of > 1.0 M in the titration