Precipitation Titration by Mohr Method in Analytical Chemistry Lab

Errors are introduced due to the need of addition of extra titrant before the endpoint colour is visible.

Potassium chromate (K2CrO4)

Iron (III) chloride

<p>Mohr’s method works in the pH region of 6-9 only.</p> Signup and view all the answers

<p>The solution must be acidic, with a concentration of about 1 M nitric acid so that the complex formed is stable.</p> Signup and view all the answers

<p>Silver nitrate (AgNO3)</p> Signup and view all the answers

<p>Argentometry is derived from a Latin word 'Argentum' which means silver.</p> Signup and view all the answers

<ol> <li>Mohr’s Method 2. Volhard’s Method 3. Fajans Method</li> </ol> Signup and view all the answers

<p>It is used for the determination of halide ions in the solution, to measure salt content in food, beverages and water, for Sulphur, thiocyanate, and dichromate determination, and for the analysis of drugs such as carbromal, KCl infusion, and NaCl infusion.</p> Signup and view all the answers

<p>To determine the mass of the chloride ion in an unknown chloride solution.</p> Signup and view all the answers

<p>Potassium chromate (K2CrO4)</p> Signup and view all the answers

<p>Errors are introduced due to the need of addition of extra titrant before the endpoint colour is visible.</p> Signup and view all the answers

<p>Mohr’s method works in the pH region of 6-9 only.</p> Signup and view all the answers

<p>The purpose of using a concentration of about 1 M nitric acid in Volhard's method is to ensure that the complex formed is stable.</p> Signup and view all the answers

<p>The method is suitable for the direct determination of silver.</p> Signup and view all the answers