-0.500 g sample consisting of NazCO3, NaHCO3, and inert materials was dissolved in sufficient vater to give 250.0 mL of solution. A 25.00 mL aliquot of this solution was boiled with 50.00 ml of 0.01255 M HC. Titration of the excess HCl to a phenolphthalein endpoint required 2.34 mL of 0.01063 M NaOH. The carbonate species in the second 25.00 mL aliquot was precipitated with an excess of BaCl, and treated with 25.00 mL of the NaOH. Titration of the excess base required 7.63 ML of the standard acid. Calculate % Na2CO3 and NaHCO3 in the sample.

-0.500 g sample consisting of NazCO3, NaHCO3, and inert materials was dissolved in sufficient vater to give 250.0 mL of solution. A 25.00 mL aliquot of this solution was boiled with 50.00 ml of 0.01255 M HC. Titration of the excess HCl to a phenolphthalein endpoint required 2.34 mL of 0.01063 M NaOH. The carbonate species in the second 25.00 mL aliquot was precipitated with an excess of BaCl, and treated with 25.00 mL of the NaOH. Titration of the excess base required 7.63 ML of the standard acid. Calculate % Na2CO3 and NaHCO3 in the sample.

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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