Determine the pH of a buffer that is 0.55 M HNO2 and 0.75 M KNO2. The value of Ka for HNO: is 6.8 × 10-4. 1 2 NEXT Based on the given values, set up ICE table in order to determine the unknown. HNO:(aq) H:O(1) H.Oʻ(aq) NO: (aq) + + Initial (M) Change (M) Equilibrium (M) 5 RESET 0.55 0.75 6.8 x 10 +2x +x -2x 0.55 + x 0.55 - x 0.55 + 2x 0.55 - 2x 0.75 + x 0.75 -x 0.75 + 2x 0.75 - 2x

Determine the pH of a buffer that is 0.55 M HNO2 and 0.75 M KNO2. The value of Ka for HNO: is 6.8 × 10-4. 1 2 NEXT Based on the given values, set up ICE table in order to determine the unknown. HNO:(aq) H:O(1) H.Oʻ(aq) NO: (aq) + + Initial (M) Change (M) Equilibrium (M) 5 RESET 0.55 0.75 6.8 x 10 +2x +x -2x 0.55 + x 0.55 - x 0.55 + 2x 0.55 - 2x 0.75 + x 0.75 -x 0.75 + 2x 0.75 - 2x

World of Chemistry, 3rd edition

3rd Edition

ISBN:9781133109655

Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste

Chapter13: Gases

Section: Chapter Questions

Problem 49A

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