Construct a galvanic (voltaic) cell from the half reactions shown below. Br2 (l)

Question

Construct a galvanic (voltaic) cell from the half reactions shown below. Br2 (l) + 2 e- ? 2 Br- (aq) ?o= 1.087 V Cu2+ (aq) + 2 e-? Cu (s) ?o= 0.340 V Calculate the equilibrium constant (K) for this cell. Assume that the temperature is 298K. First, consider what happens to the Nernst equation when the system reaches equilibrium: ? = ?o - (RT/nF) ln Q What is ? when the system has reached equilibrium? Is there any driving force left? Remember that ?G = -nF?. At equilibrium, ?G = 0, so ? = 0, too. At equilibrium, Q = K, since all reactants and products are present at their equilibrium concentrations. This simplifies the Nernst equation to: ?ocell = [(RT)/nF] ln K Now calculate a value for K. You may need to use scientific notation to record your answer. If so, enter it as: 4E43 which is equivalent to 4x1043

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??? 's are in between!!!!!pls correct them

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