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Azeotropic Mixtures

Which has low...

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Which has lowest osmotic pressure at same temperature?(1) 100 ml of 1 M urea(2) 400 ml of 0.5 M KCI(3) 200 ml of 0.5 M glucose(4) 300 ml of 0.25 M K3PO4

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Q. 100 mL aqueous solution of glucose with osmotic pressure 1.2 atm at

25^{o} C

is mixed with 300 mL aqueous solution of urea at 2.4 atm at

25^{o} C

. Calculate the osmotic pressure of mixture.

Q. The osmotic pressure of 400 ml urea and 600 ml glucose solutions are respectively 0.3 atm and 0.4 atm. The osmotic pressure of the solution obtained by mixing them will be?

Q. 100 mL of a 0.1 M HCl solution, 200 mL of a 0.2 M HCl solution, 300 mL of a 0.3 M HCl solution, 400 mL of a 0.4 M HCl solution and 500 mL of a 0.5 M HCl solution are mixed. 200 mL of this solution is diluted with 300 mL of water. What is the molarity of HCl in the resultant solution?

Q. A solution obtained by mixing

100 m L

20 %

solution of urea (

m o l a r m a s s = 60

10 m L

1.65

solution of cane sugar (

m o l a r m a s s = 342

300 K

R = 0.083 L b a r K^{- 1} m o l^{- 1}

). Calculate.
(a)Osmotic pressure of urea solution, (b) Osmotic pressure of cane sugar solution, (c) Total osmotic pressure of solution:

Q. Calculate the molarity of the resultant solution in each of the following cases:
i. 200 mL of 1 M HCl + 300 mL water
ii. 200 mL of 1 M HCl + 100 mL of 0.5 M HCl

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