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Steam Distillation - Purification of Organic Compounds
This technique is applicable for the separation and purification of those organic compounds that are solids or liquids which (a) are insoluble in water (b) are volatile in steam (c) possess a high vapour pressure (10-15 mm Hg) at 373 K and (d) consist of non-volatile impurities.
Aniline (b. p. 457 K) can be purified by using steam distillation as it boils at a temperature of 371.5 K in presence of steam. Other compounds that can be purified by steam distillation are: nitrobenzene, o-nitrophenol, salicylaldehyde, o-hydroxyacetophenone, bromobenzene, necessary oils, turpentine oil and so on.
Write the structures of monomers used in the preparation of: a. Teflon b. PMMA
formula mass of hemoglobin
Which one has zero oxidation state in s block
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Quantitative determination of a number of ions like Cu, Ag, Zn, Fe, Ni, Co, Cd etc. has been done by using 1.2.3-benztiazole as precipitating agent under different experimental c
Q.How can we determine Concentrations of Solutions? Ans. The concentration of a solution is the quantitative expression of the amount of solute dissolved in the solution.
In how many chlorines does Slicon bound The sito four chlorines, and is thus tetrahedral. The Cl-Si-Cl bond angle is 109.5°.
Acetic Acid or Ethanoic Acid Acetic acid is the oldest termed as fatty acid. It is the major constituent of vinegar and therefore its name (Latin acetum = vinegar)
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