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Posted by on Sunday, January 31, 2010 at 12:51am.

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 425C, 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

  • Chemistry - , Sunday, January 31, 2010 at 1:40am

    yo yo yo I got
    175.1637945 b/c :
    p1/t1 = p2/t2

    762/298.85 = p2/ 315.65

    p2 = 804.8362055

    subtract w/ 980.... get the positive value....

    175.1637945


    your welcome. hahaha UCI!!!!

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