1.

The standard reduction potential for Mg^(2+)//Mg is 2.37V and for Cu^(2+)//Cu is 0.337 The E_(cell)^(@)for thefollowingreactionMg+Cu^(2+) rarr Mg^(2+)+Cu is

Answer»

`+2.03 V`
`-2.03 V`
`-2.7 V`
`+2.7 V`

Solution :`E_(cell)^(@) =E_(cathode)^(@)-E_(ANODE)^(@)`
`=E_(CU^(2+)//Cu)^(@)-E^(@)`
`=0.337 -(-2.37 )V=2.7V`


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