ElectrochemistryHard
Question
The EMFs of the cell obtained by combining separately Zn and Cu electrodes of a Daniel cell with normal calomel electrodes are 1.083 V and − 0.018 V, respectively, at 250 C. If the potential of normal calomel electrode is − 0.28 V, the EMF of the Daniel cell is
Options
A.1.065 V
B.1.101 V
C.0.803 V
D.0.262 V
Solution
Ecell = ECu – EZn = (ECu – Ecalomel) – (EZn – Ecalomel)
From question Ecalomel – EZn = 1.083 V and Ecalomel – ECu = – 0.018 V
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