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Colligative properties i.e., the propert...

Colligative properties i.e., the properties of solution which depends upon the number pf aprticles present in solution are osmotic pressure, depression in freezing point, elevation in boiling point and lowering in vapour pressure. Experimental values of colligative properties for electroetically because electrolytes dissociates to furnish more ions in solution. On the other hand experimentally obtained values of colligative properties for associating nature of solute ate lower than those obtained theoretically. The ratio of experimantal colligative properties to theoretical colligative properties is called as van't Hoff factor `(i)`.
The maximum elevation in `b.pt.` is noticed in :

A

`1N NaCl`

B

`1N Na_(2)SO_(4)`

C

`1N Na_(3)PO_(4)`

D

`1N Na_(4)Fe(CN)_(6)`

Text Solution

Verified by Experts

The correct Answer is:
A
`[NaCl] = M = 1 xx 2 = 2`
`[Na_(2)SO_(4)] = (1)/(2)M = (1)/(2) xx 3 = (3)/(2)`
`[Na_(3)PO_(4)] = (1)/(3)M = (1)/(3) xx 4 = (4)/(3)`
`[Na_(4)Fe(CN)_(6)] = (1)/(4)M = (1)/(4) xx 5 = (5)/(4)`
`therefore` Max. no. of particles are present in `NaCl`.
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Colligative properties i.e., the properties of solution which depends upon the number pf aprticles present in solution are osmotic pressure, depression in freezing point, elevation in boiling point and lowering in vapour pressure. Experimental values of colligative properties for electroetically because electrolytes dissociates to furnish more ions in solution. On the other hand experimentally obtained values of colligative properties for associating nature of solute ate lower than those obtained theoretically. The ratio of experimantal colligative properties to theoretical colligative properties is called as van't Hoff factor (i) . van't Hoff coefficient 'g' for 100% dissociated NaCl solution is:

Colligative properties i.e., the properties of solution which depends upon the number pf aprticles present in solution are osmotic pressure, depression in freezing point, elevation in boiling point and lowering in vapour pressure. Experimental values of colligative properties for electroetically because electrolytes dissociates to furnish more ions in solution. On the other hand experimentally obtained values of colligative properties for associating nature of solute ate lower than those obtained theoretically. The ratio of experimantal colligative properties to theoretical colligative properties is called as van't Hoff factor (i) . The degree of dissociation of electrolyte A_(x)B_(y) is given by the relation:

Colligative properties i.e., the properties of solution which depends upon the number pf aprticles present in solution are osmotic pressure, depression in freezing point, elevation in boiling point and lowering in vapour pressure. Experimental values of colligative properties for electroetically because electrolytes dissociates to furnish more ions in solution. On the other hand experimentally obtained values of colligative properties for associating nature of solute ate lower than those obtained theoretically. The ratio of experimantal colligative properties to theoretical colligative properties is called as van't Hoff factor (i) . van,t Hoff factor (i) for dimerisation of benzoic acid in water, assuming 30% degree of association is:

Colligative properties i.e., the properties of solution which depends upon the number pf aprticles present in solution are osmotic pressure, depression in freezing point, elevation in boiling point and lowering in vapour pressure. Experimental values of colligative properties for electroetically because electrolytes dissociates to furnish more ions in solution. On the other hand experimentally obtained values of colligative properties for associating nature of solute ate lower than those obtained theoretically. The ratio of experimantal colligative properties to theoretical colligative properties is called as van't Hoff factor (i) . The correct order of osmotic pressure for the solutions : (I) 1N urea , (II) 1N NaCl (III) 1N Na_(2)SO_(4) , (IV) 1N Na_(3)PO_(4) is:

Colligative properties i.e., the properties of solution which depends upon the number pf aprticles present in solution are osmotic pressure, depression in freezing point, elevation in boiling point and lowering in vapour pressure. Experimental values of colligative properties for electroetically because electrolytes dissociates to furnish more ions in solution. On the other hand experimentally obtained values of colligative properties for associating nature of solute ate lower than those obtained theoretically. The ratio of experimantal colligative properties to theoretical colligative properties is called as van't Hoff factor (i) . For 1M solution of HA having alpha gt 0.05 , the dissociation constant K_(a) in terms of van't Hoff factor (i) can be written as :

Solution||Colligative properties

Solution||Colligative properties

Solution||Colligative properties

Solution||Colligative properties