Solubility studies in formamide: II. Solubility product of silver iodate and standard electrode potential of silver—silver iodate electrode in formamide |
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Authors: | B Nayak UN Dash |
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Institution: | Department of Chemistry, Indian Institute of Technology, Kharagpur India |
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Abstract: | The solubility and solubility product of silver iodate in formamide in sodium perchlorate solutions have been determined at 25, 30 and 35°C. The solubilities in pure formamide are found to be 2.169 × 10?4, 2.488 × 10?4, and 2.943 × 10?4 mole I?1, respectively, at these temperatures, and the corresponding solubility products are 4.609 × 10?8, 6.053 × 10?8, and 8.448 × 10?8 mole2 1?2. The standard potential of the Ag(s)/AgIO3(s)/IO3? electrode has been calculated and found to be 0.2562 V at 25°C. The mean activity coefficients of silver iodate at various rounded molarities of sodium perchlorate solutions, and the standard thermodynamic quantities for the process AgIO3(s)åAg+ (solvated) + IO3? (solvated) have been calculated at these three temperatures. |
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