QUESTION 3 Calculate Kb of a 0.5 M ammonium hydroxide solution with pH = 11.81 QUESTION 4 2- 2- Consider the following equilibrium system: Cr,0, (aq) + H,O (1) + 2 Cro, (aq) + 2 H' (aq) in which Cr2072- is orange and C-042- is yellow. A substance was added to the equilibrium mixture, and it turns yellow. Which of the following substances was added? nitric acid, HNO3 O potassium dichromate, K2Cr207 potassium chromate, K2CrO4 not enough information to determine QUESTION 5 Click Save and Submit to save and submit. Click Save All Answers to save all answers. Page 2 of 2 583 words

QUESTION 3 Calculate Kb of a 0.5 M ammonium hydroxide solution with pH = 11.81 QUESTION 4 2- 2- Consider the following equilibrium system: Cr,0, (aq) + H,O (1) + 2 Cro, (aq) + 2 H' (aq) in which Cr2072- is orange and C-042- is yellow. A substance was added to the equilibrium mixture, and it turns yellow. Which of the following substances was added? nitric acid, HNO3 O potassium dichromate, K2Cr207 potassium chromate, K2CrO4 not enough information to determine QUESTION 5 Click Save and Submit to save and submit. Click Save All Answers to save all answers. Page 2 of 2 583 words

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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