Predict the osmotic pressure order for the following:
(I) `0.1 N` urea
(II) `0.1 N NaCl`
(III) `0.1 N Na_(2)SO_(4)`
(IV) `0.1 N Na_(3)PO_(4)`

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:

Arrange the osmotic pressure in increasing order for the following (assume salts are 100% dissociated). I. 0.M urea II. 0.1 M NaCl III. 0.1 M Na_2SO_4 IV. 0.1 M Na_3PO_4

Addition of non-volatile solute to a solvent always inceases the colligative properties such as osmotic pressure, DeltaP, DeltaT_(b) and DeltaT_(f) . All these colligative properties are direactly propertional to molality if solutions are dilute. The increase in colligative properties on addition of non-volatile solute is due to incease in number of solute particles. For different aqueous solutions of 0.1 N NaCl, 0.1 N urea, 0.1 N Na_(2)SO_(4) and 0.1 N Na_(3)PO_(4) solution at 27^(@)C , the correct statement are : (P) The order of osmotic pressure is, NaCl gt Na_(2)SO_(4) gt Na_(3)PO_(4) gt urea (Q) pi = (DeltaT_(b))/(K_(b)) xx ST for urea solution (R) Addition of salt on ice increases its melting point (S) Addition of salt on ice brings in melting earlier

Addition of non-volatile solute to a solvent always inceases the colligative properties such as osmotic pressure, DeltaP, DeltaT_(b) and DeltaT_(f) . All these colligative properties are direactly propertional to molality if solutions are dilute. The increase in colligative properties on addition of non-volatile solute is due to incease in number of solute particles. For different aqueous solutions of 0.1 N NaCl, 0.1 N urea, 0.1 N Na_(2)SO_(4) and 0.1 N Na_(3)PO_(4) solution at 27^(@)C , the correct statement are : 1g mixture of glucose and urea present in 250 mL aqueous solution shows an osmotic pressure of 0.74 atm at 27^(@) C . Assuming solution to be dilture, which are correct ? (P) Percentage of urea in solute mixture is 17.6 (Q) Relative lowering in vapour pressure of this solutions is 5.41 xx 10^(-4) . (R) The solution will boil at 100.015^(@)C , if K_(b) of water is 0.5 K "molality"^(-1) (S) If glucose is replaced by same amount of sucrose, the solution will show higher osmotic pressure at 27^(@)C (T) If glucose is repalced by same amount of NaCl , the solution will show lower osmotic pressure at 27^(@)C .

Arrange the given electrolyte solutions in ascending order of molar conductivities : (1) 0.1 (M) Na_(2)SO_(4) ,( 2). 1 (M) Na_(2)SO_(4) , (3) 0.01 (M) Na_(2)SO_(4) , (4). Infinitely diluted Na_(2)SO_(4) solution

The ionic stregth of Na^(+) on mixing 100 mL 0.1 NaCl and 100 mL 0.1 N Na_(2)SO_(4) is:

Addition of non-volatile solute to a solvent always increases the colligative properties such as osmotic pressure. Delta P . Delta T_b and Delta T_f . All these colligative properties are directly proportional to molality if solutions are dilute. The increases in colligative properties on addition of non-volatile solute is due to increases in number of solute particles. For different aqueous solutions of 0.1 N NaCI, 0.1 N urea, 0.1 N Na_2SO_4 and 0.1 N Na_3PO_4 solution at 27^@C , the correct statements are : 1. The order of osmotic pressure is NaCI = Na_2SO_4 = Na_3PO_4 = urea 2. pi = (Delta T_b)/k_b xx RT for urea solution 3. Addition of salt on ice increases its melting point 4. Addition of salt on ice bring in melting of ice earlier

Out of the following three solutions, which has the highest freezing point and why ? (a) 0.1 M urea (b) 0.1 M BaCl_(2) (c) 0.1 M Na_(2) SO_(4)

Properties such as boiling point, freezing point, and vapour pressure of a pure solvent change when solute molecules are added to get homogenous solution. These are called colligative properties. Anwer the following questions: i.0.1 M ethanol ii. 0.1 m Ba_(3)(PO_(4))_(3) iii. 0.1 m Na_(2)SO_(4) Increasing order of freezing points

Properties such as boiling point, freezing point, and vapour pressure of a pure solvent change when solute molecules are added to get homogenous solution. These are called colligative properties. Anwer the following questions: i.0.1 M ethanol ii. 0.1 m Ba_(3)(PO_(4))_(3) iii. 0.1 m Na_(2)SO_(4) Increasing order of freezing points