ヨウ素滴定　解き方　チオ硫酸ナトリウム　ヨージメトリー　ヨードメトリー　化学反応式　化学基礎　高校化学　エンジョイケミストリー　323206

[Apology] The question written in yellow chalk on the blackboard from 7:15 to 10:33 and at the end of the lesson, "What are you titrating with Na2S2O4?", should have been "What are you titrating with Na2S2O3?" We have corrected it. #IodometricTitrationSolution #SodiumThiosulfate #Iodimetry Iodometry Chemical Reaction Equation Basic Chemistry High School Chemistry Enjoy Chemistry This article provides a detailed explanation of the principles of "iodometric titration," a topic covered in basic high school chemistry. Contents Although iodometric titration appears frequently on university entrance exams, it seems that not many high school students have a solid understanding of it. There's a reason for this. High school textbooks generally focus on "iodometric reduction titration" and tend to skip over questions on "iodometric oxidation titration." Both methods ultimately involve titrating iodine with an aqueous sodium thiosulfate solution, so at first glance they look the same, but there is a lack of clarity as to whether the reaction is with iodine or iodide ions, which is why high school students complain that they don't quite understand. Iodine is a basic oxidizing agent, but it is often used as a titration material because it is a mild oxidizing agent and has the property of producing a sensitive color reaction in the iodine-starch reaction. Iodine titration should be a point-scoring exercise if you can properly determine the form in which the iodine produced is produced when titrated with an aqueous sodium thiosulfate solution.