What is the purpose of the part labeled \"b\" in the galvanic cell shown? A) To

Question

What is the purpose of the part labeled "b" in the galvanic cell shown? A) To provide a source of ions to react at the anode and cathode. B) To maintain half-cell electrical neutrality via ion migration. C) To provide oxygen to facilitate oxidation at the anode. D) To provide a way for electrons to travel from the cathode to the anode. E) To provide a way for electrons to travel from the anode to the cathode. 6. What is the value of the standard Gibbs free-energy (DeltaGdegree) for the reaction below (in kJ/mol)? Sn^2+(aq) + 2Fe^3+(aq) rightarrow 2Fe^2+ + Sn^4+(aq) A) +119 B) +88.8 C) -119 D) -88.8 E) +0.617 7. A ligand is A) a Lewis base B) a Lewis acid C) always bidentate D) a Bronsted-Lowry Acid E) a transition metal 8. Which of the following can function as a chelating agent? A) CN^- B) F^- C) NCS^- D) H_2O E) C_2O_4^2- 9. For K_3[Fe(CN)_6], identify the following in order: charge on the complex ion, the oxidation state of the transition metal and the coordination number of the transition metal. A) 3+ -3 6 B) 3- +3 6 C) 0 0 6 D) 3- +3 3 E) None of these choices is correct

Explanation / Answer

7-A

8-E

9-A

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