# Problem: If an electrochemical cell, Rb | Rb +|| Li +| Li has a standard potential of +0.02 V, what is the standard reduction potential of the Rb half-cell if the Li +/Li half-reaction has a reduction potential of -3.05 V?a. -3.07 Vb. +3.07 Vc. +3.03 Vd. -3.03 Ve. 0 V

###### FREE Expert Solution

We're being asked to determine the standard reduction potential of Rb/Rb+ half­-cell when the cell potential is +0.02 V and the half-­cell potential of Li+/Li is -3.05 V where the cell notation is

Rb | Rb +|| Li +| Li

To determine the standard cell potential of the other half-cell reaction, we must identify which reaction is present in the anode and cathode

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###### Problem Details

If an electrochemical cell, Rb | Rb +|| Li +| Li has a standard potential of +0.02 V, what is the standard reduction potential of the Rb half-cell if the Li +/Li half-reaction has a reduction potential of -3.05 V?

a. -3.07 V

b. +3.07 V

c. +3.03 V

d. -3.03 V

e. 0 V

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