A solution is made by mixing 56.7 g acetone and 56.7 g methanol . What is the vapor pressure of this solution at 25°C? What is the composition of the vapor expressed as a mole fraction? Assume ideal solution and gas behavior. (At 25°C the vapor pressures of pure acetone and pure methanol are 271 and 143 torr, respectively.) The actual vapor pressure of this solution is 161 torr. Explain any discrepancies.
A solution is made by mixing 56.7 g acetone and 56.7 g methanol . What is the vapor pressure of this solution at 25°C? What is the composition of the vapor expressed as a mole fraction? Assume ideal solution and gas behavior. (At 25°C the vapor pressures of pure acetone and pure methanol are 271 and 143 torr, respectively.) The actual vapor pressure of this solution is 161 torr. Explain any discrepancies.
The actual vapor pressure of the solution (161 torr) is _________equal togreater thanless than the calculated pressure assuming ideal behavior. Therefore, the solution exhibits _________negativenopositive deviations from Raoult's law. This occurs when the solute-solvent interactions are _________weakerstronger than in pure solute and pure solvent.
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