Zn + Ag+ Zn2+ + Ag a) Write the cell according to the accepted notation for a voltaic cell, including the polarity of the electrodes, phase boundaries, salt bridge. b) Write the anode, cathode and total reactions, balance the reaction and calculate the total cell potential. c) If the enthalpy of the reaction at 25°C is, ΔH°298 = 51820 cal/mol, find the values of ΔG°298 and ΔS°298.
Zn + Ag+ Zn2+ + Ag a) Write the cell according to the accepted notation for a voltaic cell, including the polarity of the electrodes, phase boundaries, salt bridge. b) Write the anode, cathode and total reactions, balance the reaction and calculate the total cell potential. c) If the enthalpy of the reaction at 25°C is, ΔH°298 = 51820 cal/mol, find the values of ΔG°298 and ΔS°298.
Chemistry
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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Zn + Ag+ Zn2+ + Ag
a) Write the cell according to the accepted notation for a voltaic cell, including the polarity of
the electrodes, phase boundaries, salt bridge.
b) Write the anode, cathode and total reactions, balance the reaction and calculate the total
cell potential.
c) If the enthalpy of the reaction at 25°C is, ΔH°298 = 51820 cal/mol, find the values of ΔG°298
and ΔS°298.
d) Decide whether the reaction is spontaneous or not at standart conditions.
e) If Zn metal is immersed in the solution containing Ag+
ions and it is electrolyzed by
applying 1 A for 3 hours, how many grams of Ag are coated?
E
°
Zn2+/Zn = -0.763 V, E°
Ag+/Ag = 0.80 V, MAg = 107 g/mol
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