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A voltaic cell utilizes the following reaction and operates at 298K

3Ce{4+}(aq)+Cr(s)--->3Ce{3+}(aq)+Cr{3+}(aq)
{}=Charge

What is the EMF of this cell under standard conditions?

What is emf of cell when [Ce{4+}]=2.1M, [Ce{3+}]=.13M, and [Cr{3+}]=2.0*10^-2

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