5(a) Use the standard reduction potentials at 25° C in Table 18.1 in Tro, Fridgen and Shaw, and calculate the standard emf E° of an electrochemical cell described by the following reaction: Mn + Cd2+ → Mn2+ + Cd (b) What is the value of E if the concentration of Cd2+ is 5.88 x 10-5 and the concentration of Mn2+ is 6.88 x 10-3? (c) If E = 0.98 V and Cd2+ = 0.10 M, what is the concentration of Mn2+ ?

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