A student titrated 28.32 ml of a 0.118 M HCl solution with a NaOH solution of unknown concentration. After adding 36.35 ml of NaOH solution, the student realized that she had neglected to add the phenolphthalein indicator solution before starting the titration. When he/she added the phenolphthalein solution, the titration mixture turned bright pink. The student added 4.47 ml of HCl solution to cause the titration mixture to just become colorless. What is the molarity of the NaOH solution?
A student titrated 28.32 ml of a 0.118 M HCl solution with a NaOH solution of unknown concentration. After adding 36.35 ml of NaOH solution, the student realized that she had neglected to add the phenolphthalein indicator solution before starting the titration. When he/she added the phenolphthalein solution, the titration mixture turned bright pink. The student added 4.47 ml of HCl solution to cause the titration mixture to just become colorless. What is the molarity of the NaOH solution?
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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A student titrated 28.32 ml of a 0.118 M HCl solution with a NaOH solution of unknown concentration. After adding 36.35 ml of NaOH solution, the student realized that she had neglected to add the phenolphthalein indicator solution before starting the titration. When he/she added the phenolphthalein solution, the titration mixture turned bright pink. The student added 4.47 ml of HCl solution to cause the titration mixture to just become colorless. What is the molarity of the NaOH solution? (Put your answer in 3 significant figures)
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