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

Explanation:

Iodometric Titration

Principle

H2O2 oxidizes iodide to iodine in the presence of acid and molybdate catalyst. The iodine formed is titrated with thiosulfate solution, incorporating a starch indicator.

H2O2 + 2 KI + H2SO4 → I2 + K2SO4 + 2 H2O

I2 + 2 Na2S2O3 → Na2S4O6 + 2 NaI

Scope of Application

This method is somewhat less accurate than the permanganate titration, but is less susceptible to interferences by organics, and is more suitable for measuring mg/L levels of H2O2.

Principle

H2O2 oxidizes iodide to iodine in the presence of acid and molybdate catalyst. The iodine formed is titrated with thiosulfate solution, incorporating a starch indicator.

H2O2 + 2 KI + H2SO4 → I2 + K2SO4 + 2 H2O

I2 + 2 Na2S2O3 → Na2S4O6 + 2 NaI

Scope of Application

This method is somewhat less accurate than the permanganate titration, but is less susceptible to interferences by organics, and is more suitable for measuring mg/L levels of H2O2.

Answer 2

Answer:

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