explain what is the osmotic pressure and atomic numbers property quality
Answers
Answer:
Measurement of osmotic pressure method is preferred for the determination of molar masses of macromolecules such as proteins and polymers. This is due to following two reasons.
(1) The values given by the other colligative properties (elevation in the boiling point, the depression in the freezing point and relative lowering of vapour pressure) are so low that they cannot be measured accurately.
(2) Measurement of osmotic pressure is carried out at room temperature which does not require heating. Heating may change the nature of the polymer.
Answer:
Osmotic pressure is the minimum pressure which needs to be applied to a solution to prevent the inward flow of its pure solvent across a semipermeable membrane. It is also defined as the measure of the tendency of a solution to take in pure solvent by osmosis. Wikipedia
Formula
\Pi=i c R T
\Pi = osmotic pressure
i = van 't Hoff index
c = molar concentration of solute
R = ideal gas constant
T = temperature in Kelvin
Explanation:
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