30. The sulfite ion, SO32¯, is a weak base with K, = 1.00 × 10-7. What are the approximate concentra- tions of the following species in a 0.123 M solution of the sulfite ion? [SO32-] [HSO31-] [OH1-] А. 0.123 1.23 х 10-8 1.23 x 10-8 В. 0.123 1.11 x 10-4 1.11 x 10-4 С. zero 0.123 0.123 D. 0.123 1.23 x 10-8 8.1 x 10-7 31. The K, value for H2SO3 is 0.013. A solution is prepared by mixing H2SO3 and the sodium salt of HSO31- so that the initial [H2SO3] = 0.0125 M and the initial [HSO31-] = 0.0778 M. The pH of this solution is closest to A. 4.90 В. 2.68 C. 1.09 D. 1.89

30. The sulfite ion, SO32¯, is a weak base with K, = 1.00 × 10-7. What are the approximate concentra- tions of the following species in a 0.123 M solution of the sulfite ion? [SO32-] [HSO31-] [OH1-] А. 0.123 1.23 х 10-8 1.23 x 10-8 В. 0.123 1.11 x 10-4 1.11 x 10-4 С. zero 0.123 0.123 D. 0.123 1.23 x 10-8 8.1 x 10-7 31. The K, value for H2SO3 is 0.013. A solution is prepared by mixing H2SO3 and the sodium salt of HSO31- so that the initial [H2SO3] = 0.0125 M and the initial [HSO31-] = 0.0778 M. The pH of this solution is closest to A. 4.90 В. 2.68 C. 1.09 D. 1.89

Introductory Chemistry: A Foundation

9th Edition

ISBN:9781337399425

Author:Steven S. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Donald J. DeCoste

Chapter16: Acids And Bases

Section: Chapter Questions

Problem 10ALQ

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