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32nd Meeting of Academic Council - IGNOU

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Block 3: Physical Chemistry Lab<br />

Electrochemistry<br />

(a)<br />

(b)<br />

(c)<br />

(d)<br />

(e)<br />

To determine the strength <strong>of</strong> the given acid conductometrically using standard alkali<br />

solution<br />

To determine the solubility and solubility product <strong>of</strong> a sparingly soluble electrolyte<br />

conductometrically.<br />

To study the saponification <strong>of</strong> ethyl acetate conductometrically.<br />

To determine the ionization constant <strong>of</strong> a weak acid conductometrically.<br />

To titrate potentiometrically the given ferrous ammomium sulphate solution using<br />

KMnO 4 /K 2 Cr 2 O 7 as titrant and calculate the redox potential <strong>of</strong> Fe ++ /Fe +++ system on<br />

the hydrogen scale.<br />

Refractometry, Polarimetry<br />

(b)<br />

(a)<br />

To verify law <strong>of</strong> refraction <strong>of</strong> mixture (e.g. <strong>of</strong> glycerol and water) using Abbe’s<br />

refractometer.<br />

To determine the specific rotation <strong>of</strong> a given optically active compound.<br />

Molecular Weight Determination<br />

(a) Determination <strong>of</strong> molecular weight <strong>of</strong> a non-volatile solute by Rast<br />

method/Bechmann freezing point method.<br />

(b) Determination <strong>of</strong> the apparent degree <strong>of</strong> dissociation <strong>of</strong> an electrolyle (e.g., NaCl)<br />

in aqueous solution at different concentrations by ebullioscopy.<br />

Colorimetry<br />

To verify Beer – Lambert law for KMnO 4 /K 2 Cr 2 O 7 and determine the<br />

concentration <strong>of</strong> the given solution <strong>of</strong> the substance.

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