Calculate E°_cell for a silver-aluminum cell in which the cell reaction is Al(s)+ 3Ag⁺(aq)$\rarr$ Al³⁺(aq)+ 3Ag(s)

Question

Quizplus · Accepted Answer

The standard cell potential, E°cell, can be calculated using the equation: E°cell = E°red,cathode - E°red,anode where E°red,cathode and E°red,anode are the standard reduction potentials of the cathode and anode, respectively. Using the standard reduction potentials from a table, we have: E°cell = E°red,Ag+ - E°red,Al E°cell = 0.80 V - (-1.66 V) (Note that E°red,Ag+ is positive because it is a reduction reaction, while E°red,Al is negative because it is an oxidation reaction) E°cell = 2.46 V However, the question asks for E°_cell, the standard emf of the cell at 25°C. This is the same as E°cell, since standard conditions refer to standard temperature (25°C) and pressure (1 atm). Therefore, the answer is D.

Calculate E°cell for a Silver-Aluminum Cell in Which the Cell →\rarr→

Calculate E°_cell for a Silver-Aluminum Cell in Which the Cell $\rarr$