The Standard Electrode Potential of AgClO2/Ag and Electrochemical Determination of The Solubility Product of [Ag+][ClO2−]

Yasushi KANZAKI; Ikuo SATOH; Yoshio KITAZAWA; Yoichi ISHIKAWA

doi:10.5796/electrochemistry.85.294

Communication

The Standard Electrode Potential of AgClO₂/Ag and Electrochemical Determination of The Solubility Product of [Ag⁺][ClO₂⁻]

Yasushi KANZAKI, Ikuo SATOH, Yoshio KITAZAWA, Yoichi ISHIKAWA

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Keywords: Silver Chlorite, Standard Electrode Potential, Solubility Product

JOURNAL FREE ACCESS

2017 Volume 85 Issue 6 Pages 294-296

DOI https://doi.org/10.5796/electrochemistry.85.294

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Abstract

The standard electrode potential of AgClO₂/Ag and the solubility product of [Ag⁺][ClO₂⁻] were determined from the electrode potential measurements of the AgClO₂/Ag and AgCl/Ag electrodes. The standard electrode potential of AgClO₂/Ag was +0.267 V vs. standard hydrogen electrode (SHE) at 22°C. The solubility product of [Ag⁺][ClO₂⁻] in aqueous solution was calculated from the difference between the standard electrode potentials of AgClO₂/Ag and AgCl/Ag. It was found that log K_sp = log[Ag⁺][ClO₂⁻] = −9.09 (in mol dm⁻³)². The solubility product was one order as large as that of log[Ag⁺][Cl⁻] = −10.09.

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