1311+PS+8+Sp+2010

1311+PS+8+Sp+2010 - CHEM 1311 C Problem Set #8 Spring 2010...

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CHEM 1311 C Problem Set #8 Spring 2010 1. Using the Pourbaix diagram above, answer the following questions: a. What is the strongest reducing agent? Discuss the region of stability in which this species is observed. b. What is the strongest oxidizing agent? Discuss the region of stability in which this species is observed. c. Identify any transitions that are pH independent. d. Identify any transitions that are potential independent. e. What species is observed at a pH of 6 and a potential of 0.2 V?
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CHEM 1311 C Problem Set #8 Spring 2010 -0.13 V -1.1 V -1.4 CrO 4 2- ----------> Cr (OH) 3 ------------> Cr(OH) 2 ---------> Cr 2. Using the Latimer diagram answer the following questions: a. What is the potential observed for Cr(OH) 2 + CrO 4 2- 2Cr (OH) 3 b. What is the equilibrium constant for the process? c. What is the Gibb s Free Energy? d. Is the process favored? e. Is this an example or disproportionation or comproportionation? 3.
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1311+PS+8+Sp+2010 - CHEM 1311 C Problem Set #8 Spring 2010...

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