Question

What is iodometry titration and PLZZ explain its reactions.​

Answer 1

Answer:

Iodometry, known as iodometric titration, is a method of volumetric chemical analysis, a redox titration where the appearance or disappearance of elementary iodine indicates the end point.

Note that iodometry involves indirect titration of iodine liberated by reaction with the analyte, whereas iodimetry involves direct titration using iodine as the titrant.

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Answer 2

Answer:

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Step-by-step explanation:

Iodometry, known as iodometric titration, is a method of volumetric chemical analysis, a redox titration where the appearance or disappearance of elementary iodine indicates the end point. ... The iodometric titration is a general method to determine the concentration of an oxidising agent in solution.Note that iodometry involves indirect titration of iodine liberated by reaction with the analyte, whereas iodimetry involves direct titration using iodine as the titrant. ... This absorption will cause the solution to change its colour from deep blue to light yellow when titrated with standardised thiosulfate solution.

For example, the reaction: H3AsO3 + I2 + H2O → H3AsO4 + 2 H+ + 2 I. is reversible at pH < 4. The volatility of iodine is also a source of error for the titration, this can be effectively prevented by ensuring an excess iodide is present and cooling the titration mixture.