8. What is the pH of a weak acid with [HA] = 0.125 mol/L and Ka = 5.4×107?9. A buffer is created by adding 0.35 mol of sodium benzoate to 1.00 L of a 0.40 mol/L benzoic acidsolution. The Ka of benzoic acid is 6.3×105. Determine the pH of the buffer. 10. 15.0 mL of 0.250 mol/L iron (II) chloride is mixed with 5.00 mL of 0.0030 mol/L sodiumhydroxide. Does a precipitate form? (Ksp=4.87×10-17)!11. For the following reaction, identify the species that is undergoing oxidation and the species thatis undergoing reduction: I12. Balance the following reaction in a basic solution: ´´Zn + NO3 → Zn(OH)2 + NH3

Part 2:Approach to solving the questions:8. To find the pH of a weak acid solution, you can use the…

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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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