1.Two Solutions are isotonic means what?

2.Why the relative lowering of vapour pressure of a solution urea if we mixed in water?

3. Why the freezing point of Urea decreases when we mixed it in water?

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Solution

(1)

An isotonic solution refers to two solutions having the same osmotic pressure across a semipermeable membrane. This state allows for the free movement of water across the membrane without changing the concentration of solutes on either side.

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Why the freezing point of Urea decreases when we mixed it in water?

Q. Vapour pressure of pure water at

298 K

23.8 m m

H g

50 g

of urea is dissolved in

850 g

of water. The vapour pressure of water for this solution and its relative lowering are respectively:

Q. Vapour pressure of pure water at

298 K

23.8 m m H g

50 g

of urea

(N H_{2} C O N H_{2})

is dissolved in

850 g

of water. Calculate the vapour pressure of water for this solution and its relative lowering.

Vapour pressure of pure water at 298 K is 23.8 mm Hg. 50 g of urea (NH₂CONH₂) is dissolved in 850 g of water. Calculate the vapour pressure of water for this solution and its relative lowering.

When 30 g of urea are dissolved in 9.0 g of water, the relative lowering of vapour pressure is:

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1.Two Solutions are isotonic means what? 2.Why the relative lowering of vapour pressure of a solution urea if we mixed in water? 3. Why the freezing point of Urea decreases when we mixed it in water?

(1) An isotonic solution refers to two solutions having the same osmotic pressure across a semipermeable membrane. This state allows for the free movement of water across the membrane without changing the concentration of solutes on either side.

1.Two Solutions are isotonic means what?

2.Why the relative lowering of vapour pressure of a solution urea if we mixed in water?

3. Why the freezing point of Urea decreases when we mixed it in water?

(1)

An isotonic solution refers to two solutions having the same osmotic pressure across a semipermeable membrane. This state allows for the free movement of water across the membrane without changing the concentration of solutes on either side.