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Damm [24]
3 years ago
9

Can someone help me

Chemistry
1 answer:
Veseljchak [2.6K]3 years ago
3 0

Answer:

Is it D?

Explanation:

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What is the vapor pressure of a solution in which the mole fraction of the solute is 0.200 and the vapor pressure of the pure so
Ulleksa [173]

Answer: The vapor pressure of a solution in which the mole fraction of the solute is 0.200 is 80.0 torr

Explanation:

As the relative lowering of vapor pressure is directly proportional to the amount of dissolved solute.

The formula for relative lowering of vapor pressure will be,

\frac{p^o-p_s}{p^o}=i\times x_2

where,

p^0= vapor pressure of pure solvent = 100.0 torr

p_s = vapor pressure of solution = ?

i = Van'T Hoff factor = 1 for nonvolatile, nonelectrolyte solute

x_2 = mole fraction of solute  = 0.200  

\frac{100.0-p_s}{100.0}=1\times 0.200

p_s=80.0torr

The vapor pressure of a solution in which the mole fraction of the solute is 0.200 is 80.0 torr

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3 years ago
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