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For each of the following cells : (a) ...

For each of the following cells :
(a) Write the equation for cell process.
(b) Find `E^@` for each cell.
(c) Expiain the significance of any negative answers in part (b).
`1. Fe//Fe(NO_3)_2` (1.0 M) | | `Zn^(2+)` (1.0 M)/Zn
2. `Pt//Cl_2`(g)/KCl | | `Hg_2Cl_2(s)`/Hg
3. `Cd//Cd^(2+)` (1.0M) | | `AgNO_3//Ag E^@` (Fe) = 0.41V , `E^@` (Cd) = 0.40 V , `E^@` (Zn) = 0.76 V `E^@` (Cl– / `Cl_2`) = – 1.36 V , `E^@` (Ag) = – 0.80V , `E^@` (`Hg//Hg_2Cl_2`) = – 0.27 V

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The correct Answer is:
(1) 0.35 V (2) –1.09 V (3) –1.2 V
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