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

The following reaction occurs in a cell Zn(s) + Co^(2) + hArr Co(s) + Zn^(2+) Write the electrode reaction and find out the emf cell, given Zn rarr Zn^(2+) , E^(0) = 0.76 V Co rarr Co^(2+) , E^(@) = 0.28V

Knowledge Check

  • Which will increase the voltage of the cell Sn(s) +2Ag^+(aq)rarr Sn^(2+)(aq)+2Ag(s) :

    A
    Increase in size of the silver rod
    B
    Increase in the concentration of `Sn^(2+)` ions
    C
    Increase in the concentration of `Ag^+`ions
    D
    None

  • Which will increase the voltage of the cell Sn(s) +2Ag^+(aq)rarr Sn^(2+)(aq)+2Ag(s) :

    A
    Increase in size of the silver rod
    B
    Increase in the concentration of `Sn^(2+)` ions
    C
    Increase in the concentration of `Ag^+`ions
    D
    None

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    Write the cell reaction and calculate the emf of the Cell Zn|Co^2+(aq)|| Zn^2+(aq)| Co (Given E_(Zn|Zn^2+)^@=+0.76V and E_(Co|Co^2+)^@=+0.28V .

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