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Calculate the electrode potential of a c...

Calculate the electrode potential of a copper wire dipped in `"0.1M CuSO"_(4)` solution at `025^(@)C`. The standard electrode potential of copper is 0.34 Volt.

Text Solution

Verified by Experts

The electrode reaction written as reduction reaction is
`Cu^(2+) +2e^(-)toCu` so that n=2
Applying nernst eqn. we get `E=E^(@)-(0.0591)/(2)"log"(1)/([Cu^(2+)])`
`=0.34-(0.0591)/(2)"log"(1)/(0.1)=0.34-0.02955=0.31045`volt.
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Knowledge Check

  • The electrode potential of a silver electrode dipped in 0.1 M AgNO_(3) solution at 298K is (E^(@) red of Ag =0.80 volt)

    A
    0.0741 V
    B
    0.0591 V
    C
    0.741 V
    D
    0.859 V

  • Which cell will measures standard electrode potential of copper electrode ?

    A
    `Pt(s)|H_(2)(g,0.1 bar)|H^(+)(aq),1 M)||Cu^(2+)(aq, 1 M)|Cu`
    B
    `Pt(s)|H_(2)(g,1 bar)|H^(+)(aq,1 MM)||(cu^(2+)(aq,2M)|Cu`
    C
    `Pt(s)|H_(2)(g,1bar)|H^(+)(aq,1M)||Cu^(2+)(aq,1M)|Cu`
    D
    `Pt(s)|H_(2)(g,1bar)H^(+)(Aq , 0.1 M)||Cu^(2+)(aq , 1 M)|Cu`

  • Which cell will measure standard electrode potential of copper electrode?

    A
    `Pt(s)|H_(2)(g,0.01" bar")|H^(+)(aq.,1M)||Cu^(2+)(aq.,1M)|Cu`
    B
    `Pt(s)|H_(2)(g,1" bar")|H^(+)(aq.,1M)||Cu^(2+)(aq.,2M)|Cu`
    C
    `Pt(s)+H_(2)(g,1" bar")|H^(+)(aq.,1M)||Cu^(2+)(aq.,1M)|Cu`
    D
    `Pt(s)|H_(2)(g,1" bar")|H^(+)(aq.,0.1M)||Cu^(2+)(aq.,1M)|Cu`

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    The standard EMF of the cell : Ni| Ni^(2+)||Cu^(2+)|Cu is 0.59 volt The standsard elctrode potential (reduction potential of copper electrode is 0.34 volt . Calculate the standsard electrode potential of nickel electrode

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    (i) Give three differences, between EMF and Potential difference. Calculate the electrode potential of a copper electrode dipped in 0.1 M CuSO_(4) solution at 25^(@)C .

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