The total pressure in a flask containing air and ethanol at 257C is 878 mm Hg. The pressure of the air in the flask at 257C is 762 mm Hg. If the flask is immersed in a water bath at 450C, the total pressure is 980 mm Hg. The vapor pressure of ethanol at the new temperature is ______ mm Hg.
(Hint: you will need to correct the pressure of air at the new temperature using the Gas Law: P1T1 = P2T2)
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