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(i) State Kohlrausch law. (ii) Calcul...

(i) State Kohlrausch law.
(ii) Calculate the emf of the following cell at 298 K:
`Al(s)//Al^(3+) (0.15M)//Cu^(2+)(0.025M) //Cu(s)`
(Given `E^(@)(Al^(3+)//Al) = -1.66 V, E^(@)(Cu^(2+)//Cu) = 0.34V, log 0.15 = -0.8239, log 0.025 = - 1.6020)`

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