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Osmotic Pressure

What would be...

Question

What would be the osmotic pressure of $0.05 M$ solution of sucrose at $5^{o} C$ ? Find out the concentration of a solution of glucose which would be isotonic with this solution of sucrose.

(Molecular mass of sucrose $= 342$ , Molecular mass of glucose $= 180$ )

A

1.9

atm; Concentration of glucose sol. =

9.0

g\L

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B

1.14

atm; Concentration of glucose sol. =

9.0

g\L

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C

3.14

atm; Concentration of glucose sol. =

8.0

g\L

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D

None of these

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Solution

The correct option is A $1.14$ atm; Concentration of glucose sol. = $9.0$ g\L

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An aqueous solution of sucrose (C₁₂H₂₂O₁₁) containing 34.2 g/L of sucrose has an osmotic pressure of 2.38 atm at 17° C. For an aqueous solution of glucose (C₆H₁₂O₆) to be isotonic with this solution, it's concentration (in g/L) should be:

An aqueous solution of sucrose (C₁₂H₂₂O₁₁) containing 34.2 g/L of sucrose has an osmotic pressure of 2.38 atm at 17° C. For an aqueous solution of glucose (C₆H₁₂O₆) to be isotonic with this solution, it's concentration (in g/L) should be:

Q. An aqueous solution of sucrose, containing 34.2 gm of

C_{12} H_{22} O_{11}

, has an osmotic pressure of

2.38

17^{o} C

. For an aqueous solution of glucose,

C_{6} H_{12} O_{6}

to be isotonic with the solutions, it would have:

Q. Calculate the osmotic pressure at

25^{o} C

of a solution containing 1 g of glucose and 1 g of sucrose in 1 litre of solution.
If it were not known that the solute was a mixture of glucose and sucrose, what would be the molecular weight of solute corresponding to the calculated osmotic pressure?

Q. An aqueous solution of sucrose,

C_{12} H_{22} O_{11}

, containing 34.2 g/L has an osmotic pressure of 2.38 atmospheres at

17^{o} C

, For an aqueous solution of glucose,

C_{6} H_{12} O_{6}

, to be isotonic, with this solution, it would have:

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