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Relative Lowering of Vapour Pressure

Vapour pressu...

Question

Vapour pressure of a solution of 5g of non-electrolyte in 100g of water at a particular temperature is 2985 N/m². The vapour pressure of pure water is 3000 N/m². The molecular weight of the solute is:

A

60

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B

120

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C

180

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D

380

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Solution

The correct option is C
180

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Similar questions

Q. The vapour pressure of a solution containing 5 g of a non electrolyte in 100 g of water at a particular temperature is

2985 N m^{- 2}

. If the vapour pressure of pure water is

3000 N m^{- 2}

, the molecular weight of solute is:

Q. The vapour pressure of solution of 5g of non electrolyte in 100 g of a water at a particular temperature is

2985 N m^{- 2}

. The vapour pressure of pure water at that temperature is

3000 N m^{- 2}

20 g

of non-electrolyte, non-volatile solute

(C_{x} H_{2 x} O_{x})

when dissolved in

100 g

100^{\circ} C

, lowers the vapour pressure of solution by

(\frac{1}{100}) t h

of the vapour pressure of pure water. What is formula of the compound?

Q. The VP of a solution of 5g of non - electrolyte in 100 g of

H_{2} O

at a particular temp is 2985

N m^{- 2}

. The VP of pure water at that temperature is 3000

N m^{- 2}

. The molecular weight of the solute is:

Q. A solution containing

8.44 g

100 g

of water has a vapour pressure

4.56 m m

H g

273 K

. If the vapour pressure of pure water is

4.58 m m

H g

at the same temperature, calculate the molecular weight of sucrose.

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