CHE 102LLR Study Guide - Final Guide: Joule, Equilibrium Constant
Chemistry 102
REVIEW QUESTIONS
Final Exam
1. Which oxidizing agent shown below will oxidize Br– but not Cl–?
a) HNO3
b) K2Cr2O7 (in acid)
c) KMnO4 (in acid)
2. The equilibrium constant (Kc) for the reaction shown below is 9.1 X 10-6 at 25oC. What is ∆Go for this
reaction at this temperature?
2Fe3+ (aq) + Hg22+ (aq) 2Fe2+ (aq) + 2 Hg2+ (aq)
3. Write half reactions and cell notation for a cell that has the following overall reaction:
Zn (s) + 2HCl (aq) ZnCl2 (aq) + H2 (g)
4. Calculate the equilibrium constant K for the following reaction at 25oC from standard electrode
potentials. 2 Fe (s) + 6 H+ (aq) → 2 Fe3+ (aq) + 3 H2 (g)
Document Summary
Review questions: which oxidizing agent shown below will oxidize br. Final exam but not cl: hno3, k2cr2o7 (in acid, kmno4 (in acid, the equilibrium constant (kc) for the reaction shown below is 9. 1 x 10-6 at 25oc. 2+ (aq) 2fe2+ (aq) + 2 hg2+ (aq: write half reactions and cell notation for a cell that has the following overall reaction: Zn (s) + 2hcl (aq) zncl2 (aq) + h2 (g: calculate the equilibrium constant k for the following reaction at 25oc from standard electrode potentials. 2 fe (s) + 6 h+ (aq) 2 fe3+ (aq) + 3 h2 (g) Chemistry 102: the free energy change ( g) for the reaction a (g) b (g) is zero under certain conditions. The standard free energy change ( g ) for this reaction is 42. 5 kj. +] = 0. 010m, [h+] = 1. 0m, [ni2+] = 2. 0 m, and [vo2+] = 2. 0 m.