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Consider the reaction 2Ag^(+) + Cd to 2A...

Consider the reaction `2Ag^(+) + Cd to 2Ag + Cd^(2+)`. The standard reduction potentials of `Ag^(+)//Ag and Cd^(2+)//Cd are + 0*80 " volt and " 0*40` volt, respectively.
What is the standard cell emf, `E^@` ?

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1.20 V, `E_(cell)=E_(cell)^(0)-(0.0591)/(n)"log"([Cd^(2+)][Ag]^(2))/([Ag^(+)]^(2)[Cd])`.
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