Question

In: Chemistry

What is the potential of a galvanic cell made up of Cd/Cd2+ and Ag/Ag+ half-cells at...

What is the potential of a galvanic cell made up of Cd/Cd2+ and Ag/Ag+ half-cells at 25

Solutions

Expert Solution

The cell reaction is Cd + 2Ag+ Cd2+ + 2Ag : E0 = E0Ag+/Ag - E0Cd2+ / Cd

                                                                           = +0.7996 -(-0.40 ) V

                                                                           = +1.1996 V

Where n = number of electrons transferred = 2

Therefore the potential of a galvanic cell is +1.178 V


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