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Calculate E^(@) for the cell : Al|Al^(3...

Calculate `E^(@)` for the cell : `Al|Al^(3+)(1 M)||Cu^(2+)(1M)|Cu`
Given : `E_(Al^(3+)//Al)^(@)` and `E_(Cu^(2+)//Cu)^(@)` as -1.66 V and + 0.34 V respectively

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The correct Answer is:
2.0 V
`E_(cell)^(@)=E_(Cu^(2+),Cu)^(@)-E_(AI^(3+),AI)^(@)=0.34-(-1.66)=2.0V`
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