Write the reactions involved for each step in the Winkler method. Under alkaline conditions dissolved oxygen will oxidize manganese (II) ions to manganese (IV). Under acidic conditions, the MnO2 oxidizes the iodide (I-) to free iodine (I2). Reduction of iodine to iodide with thiosulfate.
Write the reactions involved for each step in the Winkler method. Under alkaline conditions dissolved oxygen will oxidize manganese (II) ions to manganese (IV). Under acidic conditions, the MnO2 oxidizes the iodide (I-) to free iodine (I2). Reduction of iodine to iodide with thiosulfate.
Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter18: Electrochemistry
Section: Chapter Questions
Problem 18.57QE
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Write the reactions involved for each step in the Winkler method.
- Under alkaline conditions dissolved oxygen will oxidize manganese (II) ions to manganese (IV).
- Under acidic conditions, the MnO2 oxidizes the iodide (I-) to free iodine (I2).
- Reduction of iodine to iodide with thiosulfate.
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