A concentration cell is constructed by using the same half-reaction for both the cathode and anode. What is the value of standard cell poten

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A concentration cell is constructed by using the same half-reaction for both the cathode and anode. What is the value of standard cell potential, for a concentration cell that combines a silver anode in contact with 0.10 M silver nitrate and a silver cathode in contact with 0.00003 M silver nitrate

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Thành Đạt 1 week 2021-07-21T22:19:20+00:00 1 Answers 1 views 0

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    2021-07-21T22:21:05+00:00

    Solution :

    A cell that is concentrated is constructed by the same half reaction for the anode as well as he cathode.

    We know,

    In a standard cell,

    the reduction half cell reaction is :

    $Ag^+(aq)+e^- \rightarrow Ag(s) E^0 = -0.80 \ V$

    The oxidation half ell reaction :

    $Ag(s) \rightarrow Ag^+(aq) + e^- \ E^0= +0.80 \ V$

    Thus the complete reaction of the cell is :

    $Ag^+(aq)+ Ag(s) \rightarrow Ag^+(aq)+Ag(s)$

    $E^0 $ cell = $E_R - E_L = 0.00  \ \text{volts}$

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