Quiz 08-October-2022
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Physical Pharmacy
Determination of Freundlich and Langmuir Constants using Activated charcoal
Adsorption is a surface phenomenon. In adsorption process the adsorbate is adhered to the surface of adsorbent. Freundlich studied adsorption of gas on solid and from the experimental data gave the equation
Determination of Swelling and Foaming Index
Many herbal drugs are of specific for the therapeutic or pharmaceutical utility because of their swelling properties − especially gums and drugs those are containing an appreciable amount of constituents like mucilage, pectin or hemicelluloses.
Determination of stability constant and donor acceptor ratio of PABA-Caffeine complex by solubility method
Few properties of complexes like solubility, light absorption, conductance, partitioning behavior, chemical reactivity and conductance etc are different from their components. Example- PABA and caffeine form complexes in solution.
Partition co-efficient of Iodine in Distilled water and Carbon tetrachloride
When a solute is shaken with 2 immiscible solvents it gets partitioned between the solvents. To establish the partition co-efficient of iodine in distilled water (d.w.) and carbon tetrachloride.
Determination of viscosity of gel using brook field viscometer
Brook field viscometer is a type of volitional viscometer. It contains different size violating spindle which is immersed in the test material to be tested.
Determination of surface tension by drop weight method
The stalagmometer is consist of a capillary bore with a bulb at the middle. The surface tension of the given liquid can be determined by using the following formula.
Determination of surface tension by drop count method
The stalagmometer consist of a glass capillarytube with a bulb at the middle.There is a capillary bore at the tip of the stalagmometer.
