A)If 0.800mol of a nonvolatile nonelectrolyte are dissolved in 3.70mol of water,

Question

A)If 0.800mol of a nonvolatile nonelectrolyte are dissolved in 3.70mol of water, what is the vapor pressure PH2O of the resulting solution? The vapor pressure of pure water is 23.8 torr at 25 degrees C?

B)A solution is composed of 1.10mol cyclohexane (P?cy=97.6 torr) and 2.70mol acetone (P?ac=229.5 torr). What is the total vapor pressure Ptotal above this solution?

C)As you saw in Part B, the vapor above the cyclohexane-acetone solution is composed of both cyclohexane vapor and acetone vapor. What mole fraction of the vapor above the solution, Xcy(vapor), is cyclohexane?

Explanation / Answer

A)19.5torr

B)191.31torr

C)mole faction of cyclohexane=.147 nd acetone is .853

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