Information: Standard Reduction Potential Tables are for E degree _reduction = E
ID: 1059414 • Letter: I
Question
Information: Standard Reduction Potential Tables are for E degree _reduction = E degree _cathode E degree _oxidation = -E degree _reduction So, change the sign on anode epsilon degree (reverse the reaction) and ADD together. Delta E degree _cell = E degree _red, cathode + E degree _ox, anode Or, you can subtract the two reduction potentials. Delta E degree _cell = E degree _red, cathode - E degree _red, anode Use the Table of Standard Reduction Potentials given to answer the questions below: What is the standard concentration for solutions? What is the standard pressure for gases? What is the temperature used in the standard reduction table? Which reagent (half reaction) has the largest reduction potential (epsilon degree _red)? Which reagent (half reaction) has the smallest reduction potential (epsilon degree _red)? Calculate the overall cell potential for a galvanic cell constructed from these reagents.Explanation / Answer
a) standard concentration for solution is 1.00 M . all concentrations should be 1.00 M
b) standard pressure of all gases 1.00 bar
c) standard temperature is 25 oC or 298 K
d) the reagent F2 has largest reduction potential . its value Eo = + 2.87 V
e) Li has smallest reduction potential its value Eo = -3.04 V
f) overall potential = Eo cathode - Eo anode
= 2.87 - (-3.04)
= 5.91 V