20) At 23.0°C, the vapor pressure of acetonitrile, CH3CN, is 81.0 torr while that of acetone, C3H6O, is 184.5 torr. What is the vapor pressure of a solution that contains 0.550 moles of acetonitrile and 0.350 moles of acetone? (Assume the mixture behaves as an ideal solution.) A) 109 torr B) 239 torr C) 130 torr D) 144 torr E) 121 torr

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20) At 23.0°C, the vapor pressure of acetonitrile, CH3CN, is 81.0 torr while that of acetone,
C3H6O, is 184.5 torr. What is the vapor pressure of a solution that contains 0.550 moles
of acetonitrile and 0.350 moles of acetone? (Assume the mixture behaves as an ideal
solution.)
A) 109 torr
E) 121 torr
B) 239 torr
C) 130 torr
D) 144 torr
Transcribed Image Text:20) At 23.0°C, the vapor pressure of acetonitrile, CH3CN, is 81.0 torr while that of acetone, C3H6O, is 184.5 torr. What is the vapor pressure of a solution that contains 0.550 moles of acetonitrile and 0.350 moles of acetone? (Assume the mixture behaves as an ideal solution.) A) 109 torr E) 121 torr B) 239 torr C) 130 torr D) 144 torr
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