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Home/ Questions/The voltage generated by the zinc concentration cell described by the line notation Zn(s) | Zn²+...
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ptntuto
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ptntuto
Asked: April 11, 20222022-04-11T18:35:24+00:00 2022-04-11T18:35:24+00:00In: Chemistry

The voltage generated by the zinc concentration cell described by the line notation Zn(s) | Zn²+…

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The voltage generated by the zinc concentration cell described by the line notation Zn(s) | Zn²+...

The voltage generated by the zinc concentration cell described by the line notation                           Zn(s) | Zn²+ (aq, 0.100 M) || Zn2+ (aq, ? M)| Zn(s)
is 24.0 mV at 25°C. Calculate the concentration of the Zn2+ (aq) ion at the cathode.

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Concentration Cell: Concentration cells enhance levels of dilute electrolytes and reduces the concentration in concentrated electrolyte. This causes the voltage difference between two halves in a concentration cells. Concentrations cells are a class of galvanic cells. They are able to analyze two solutions, and, consequently, help in determining what the level of concentration in an unidentified solution applying the Nernst equation.

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    Lauren Evans
    2022-04-12T00:14:56+00:00Added an answer on April 12, 2022 at 12:14 am


    The voltage generated by the zinc concentration cell described by the line notation Zn(s) | Zn²+...

    + 2e – Zn(s). Oxidation half reactions: Zn(s), Zn2+ (0.100M) + 2e- Cell reaction Zn* (?). – Zn2+ (0.100M) Standard cell potential, En = 24.0mV = 0.0.0240 V Number of moles of electrons transferred in the cell, x = 2. Zn2+ = 0.100M [zn**]ukoda=? Janode Econ= E. -0.0591V1. [Zno* ] cathode 0.0240 V=0.00 V -0.0591V, 0.100 M 2 108 [Zn2 0.0591V 0.100 M -=-0.0240 V cathode 2 108 [Zn2+ log_0.100 M -=-0.812 cathode 0.100 M_-10-0.812 = 0.154 [Znloetade Znajde = -= 0.649M 154 [Zn2+7 0.100 M
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