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Liquids in Liquids

34.05 ml of p...

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34.05 ml of phosphorus vapour weighs 0.0625 g at546 degree C and 0.1 bar pressure. What is the molar mass of phosphorus?

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Q. 34.05 mL of phosphorus vapour weighs 0.0625 g at 546

^{\circ} C

and 0.1 bar pressure. What is the molar mass of phosphorus?

34.05 m L

of phosphorus vapours weight

0.0625 g

546^{\circ} C

0.1 b a r

pressure. What is the molar mass of phosphorus?

Q. The vapour pressure of pure benzene at a certain temperature is

0.850

bar. A non-volatile, non-electrolyte solid weighing

0.5

g

39

g

of benzene (molar mass

78

g

{m o l}^{- 1}

), vapour pressure becomes

0.845

bar. What is the molar mass of the solid substance?

Q. The vapour pressure of pure benzene at a certain temperature is 0.850 bar. A non-volatile, non-electrolyte solid weighing 0.5 g when added to 39.0 g of benzene (molar mass

78 g m o l^{- 1})

. The vapour pressure of the solution then is 0.845 bar. What is the molar mass of the solid substance?

Q. State Raoult's law.

The vapour pressure of pure Benzene at a certain temperature is

0.850 b a r

. A non-volatile, non-electrolyte solid weighing

0.5 g

39.0 g

(m o l a r m a s s 78 g m o l^{- 1})

. Vapour pressure of the solution, then is

0.845 b a r

. What is the molar mass of the solid substance?

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