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Find change in electrode potential of E(...

Find change in electrode potential of `E_((MnO_4^-)//Mn^(2+)), if [`H^+`] change from 1M to `10^(-4)`M [Given `RT/F` = 0.059 & [`MnO_4^-`] = [`Mn^(2+)`] = 1M]

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Find the standard electrode potential of MnO_(4)^(c-)|MnO_(2). The standard electrode potential of MnO_(4)^(c-)|Mn^(2+)=1.51V and MnO_(2)|MnO_(2)|Mn^(2+)=1.23V .

The magnitude of the change in oxidising power of the MnO_4^(-)//Mn^(2+) couple is x xx 10^(-4)V , if the H^(+) concentration is decreased from 1M to 10^(-4) M at 25^(@)C . (Assume concentration of MnO_4^(-) and Mn^(2+) to be same on change in H^(+) concentration ) . The value of x is ___________. (Rounded off to the nearest integer ) [Given : (2.303 RT)/(F) = 0.059 ]

Knowledge Check

  • The charge required for reducing 1 mole of MnO_4^(-) to Mn^(2+) is

    A
    `1.93xx10^5` C
    B
    `2.895xx10^5` C
    C
    `4.28xx10^5` C
    D
    `4.825xx10^5` C
  • The oxidation state of Mn in MnO_4^(2-) is

    A
    `+8`
    B
    `+6`
    C
    `+7`
    D
    `+5`
  • The charge required for reducing 1 mole of MnO_(4)^(-)" to "Mn^(2+) is:

    A
    `1.93xx10^(5)C`
    B
    `2.8xx10^(5)C`
    C
    `4.3xx10^(5)C`
    D
    `4.82 xx10^(5)C`
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    What is the standard electrode potential for the electrode MnO_(4)^(-)//MnO_(2) in solution ? ("Given: "E_(MnO_(4)^(-)//Mn^(2+))^(@)=1.51" volt," E_(MnO_(2)//Mn^(2+))^(@)=1.23"volt")

    What is the standard electrode potential for the electrode, MnO_4^-//MnO_2 in an acid solution? E_(MnO_4^-,Mn^(2+))^@=1.51 V, E_(MnO_2,Mn^(2+))^@=1.23V

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