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A voltaic cell is constructed that uses the following reaction and operates at 298 K :...

A voltaic cell is constructed that uses the following reaction and operates at 298 K :
Zn(s)+Ni2+(aq)→Zn2+(aq)+Ni(s)

A)What is the emf of this cell under standard conditions?

B)What is the emf of this cell when [Ni2+]= 2.00 M and [Zn2+]= 0.120 M ?

C)What is the emf of the cell when [Ni2+]= 0.290 M and [Zn2+]= 0.960 M ?

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