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skad [1K]
2 years ago
6

Please help? Liquid, Chemical Properties, Compounds or Products?​

Chemistry
2 answers:
kiruha [24]2 years ago
4 0

Answer:

compounds!!

Explanation:

...........

Rainbow [258]2 years ago
3 0

Answer:

They are compounds.

Explanation:

..........

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Answer:

Step 1 of 6

(a)

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The mass of toluene is, so calculate the moles of toluene as follows:



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Therefore, the mole fraction of benzene and toluene is  and  respectively.

Step 2 of 6

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The formula to calculate the partial pressure is as follows:



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Vapour pressure of pure benzene at  is.

Substitute the values in the equation as follows:



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Step 3 of 6

(c)

Vapor pressure of the solution at 1 atm is  .

When the total pressure of the vapour pressure of the mixture is  at a temperature, then, the solution boils. It corresponds to the boiling point of the solution.

Calculate the total pressure of the solution at  as follows:



Since, the total pressure is less than the atmospheric pressure, the solution will not boil at  .

Calculate the total pressure of the solution at  as follows:



Since, the total pressure is greater than the atmospheric pressure, the solution will boil at  .

Therefore, the boiling point of the solution is  .

Step 4 of 6

(d)

Mole fraction of benzene at  is calculated as follows:



Mole fraction of toluene at  is calculated as follows:



Therefore, the mole fractions of benzene and toluene are  and  respectively.

Step 5 of 6

(e)

Vapor pressure of benzene at  is  .

Partial pressure of benzene is calculated as follows:



Vapor pressure of toluene at  is  .

Partial pressure of toluene is calculated as follows:



Step 6 of 6

Weight composition of the vapour that is in equilibrium with the solution is calculated as follows:



Weight composition of the vapour that is in equilibrium with the solution is calculated as follows:



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