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The standard reduction potential for the...

The standard reduction potential for the reaction `Sn^(4+) + 2erarr Sn^(2+)` is `+ 0.15 V`. Calculate the free energy change of the reaction.

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28.95kJ
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The standard reduction potential of the reaction, 2H_(2)O+2e rarr H_(2)+2OH^(-) is -0.8277V at 25^(@)C . Find the value of the equilibrium constant of the reaction 2H_(2)Orarr H_(3)O^(+)+OH^(-) at the same temperature.

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Knowledge Check

  • The standard reduction potentials for Zn^(2+)|Zn, Ni^(2+)|Ni and Fe^(2+)|Fe are -0.76, -0.23 and 0.44V respectively. The reaction x+y^(2+)rarr x^(2+)+y will be spontaneous when -

    A
    x = Ni, y = Zn
    B
    x = Fe, y = Zn
    C
    x = Zn, y = Ni
    D
    x = Ni, y = Fe

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    The standard reduction potential of the half - cell: NO_(3)^(-)(aq)+2H^(+)+e rarr NO_(2)(g)+H_(2)O is 0.78V. (1) Calculate the reduction potential in 8 M H^(+) .

    At 25^(@)C , the standard free energy change for a reaction is 5.4 kJ. Calculate the value of equilibrium constant of the reaction at the temperature.

    Reactivity of SN2 reaction ?

    The standard electrode potential of Daniell cell is 1.1V. Calculate the standard Gibbs energy for the reaction : Zn(s)+Cu^(2+)(aq)rarr Zn^(2+)(aq)+Cu(s)

    The standard reduction potential of Zn^(2+)|Zn electrode is -0.76 V . What will be the electrode reactions if this electrode is coupled with a standard hydrogen electrode?

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    The standard reduction potential of Zn is -0.76V and that of Cu is +0.34V . What do they indicate?

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