Give reasons for the following :

(a) Measurement of osmotic pressure method is preferred for the determination of molar masses of macromolecules such as proteins and polymers.

(b) Aquatic animals are more comfortable in cold water than in warm water.

(c) Elevation of boiling point of 1 M KCl solution is nearly double than that of 1 M sugar solution

 

 

 

 
 
 
 
 

Answers (1)
S Sumit

(a) Measurement of osmotic pressure method is preferred for the determination of molar masses of macromolecules such as proteins and polymers because the magnitude of osmotic pressure is large even for very dilute solution and it can be measured at room temperature.

(b) Aquatic animals are more comfortable in cold water than warm water since availability of dissolved air is more as increase in temperature decreases solubility.

(c) Elevation of boiling point of 1M KCl solution is nearly double than 1M sugar solution, this is because KCl dissociates in solution as K^{+}and Cl^{-}.

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