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Describe the construction and working of Daniell cell.
The following reaction occurs in a cell
`Zn (s) + Co^(2+) ( aq) hArr Co(s) + Zn^(2+)(aq)`
Write the electrode reaction and find out the emf of the cell. Given
`Zn(s) rarr Zn^(2+)(aq) , E^(@) = 0.76 V`
`CO(s) rarr Co^(2+)(aq) , E^(@) = 0.28V`

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Construction and working of Daniell cell.
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