WebRESUMO: Este estudo aborda o uso de ferramentas colaborativas baseadas na internet para prover a interatividade no ambiente escolar. O trabalho foi baseado na pesquisa por bases teóricas para o uso da interatividade e colaboração no ensino, bem como na pesquisa por ferramentas colaborativas que possuíssem aplicabilidades para o apoio ao … Web27 okt. 2024 · Second important reaction used in the iodometry is reduction of iodine with thiosulfate: 2S 2 O 32- + I 2 → S 4 O 62- + 2I - In the case of both reactions it is better to avoid low pH. Thiosulfate is unstable in the presence of acids, and iodides in low pH can be oxidized by air oxygen to iodine. Both processes can be source of titration errors.
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WebBasic Principles. Iodometry is commonly used to analyse the concentration of oxidizing agents in water samples, such as oxygen saturation in ecological studies or active … WebIodometric reactions are rapid and quantitative. A precise and stable reducing agent, sodium thiosulfate (Na 2 S 2 O 3 ), is available to react with the iodine. The amount of iodine … bus from dallas to california