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Construct galvanic cells from the follow...

Construct galvanic cells from the following pairs of half cells and calculate their emf.
`underset(1 atm) ((Pt)) H_2|HCl (1M) and underset(1 atm)Pt (Cl_2)|HCl (1M)`

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`H_2|H^+||Cl_2|Cl^(-) , E=1.36V`
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