A chemist received different mixtures for analysis with the statement that they contained NaOH, NaHCO3, Na2CO3 or compatible mixtures of these substances together with inert material. From the data given, identify the respective materials. Sample 4. The sample was titrated with acid until the pink of phenolphthalein disappeared; this process required 39.96 mL. On adding an excess of the acid, boiling and titrating back with NaOH, it was found that the base was equivalent to the excess acid. A. NazCO3, NaHCO3 В. NaHCOз O C. Na2CO3 O D. None of these OE. NAOH

A chemist received different mixtures for analysis with the statement that they contained NaOH, NaHCO3, Na2CO3 or compatible mixtures of these substances together with inert material. From the data given, identify the respective materials. Sample 4. The sample was titrated with acid until the pink of phenolphthalein disappeared; this process required 39.96 mL. On adding an excess of the acid, boiling and titrating back with NaOH, it was found that the base was equivalent to the excess acid. A. NazCO3, NaHCO3 В. NaHCOз O C. Na2CO3 O D. None of these OE. NAOH

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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