- #1
ally1h
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Homework Statement
Benzene, C6H6, has a boiling point of 80 degrees Celsius. The density of benzene vapor in equilibrium with liquid benzene at 50 degrees Celsius is 1.153 g/L. What is the vapor pressure of benzene in mmHg at 50 degrees Celsius?
Homework Equations
PV=nRt
density = m/v
The Attempt at a Solution
I thought PV=nRt might cover it.. substituting d=mv into the equation and getting:
P = dRt/m
Plugging in I get:
[(1.153 g/L)(62.364 L Torr/mol K)(323 K)] / (1084.1 g/mol)
P = 21.43 Torr = 0.028 mmHg
What am I doing wrong? My professor covered what vaporization is, not how to go about getting vaporization pressure. I have a test Wednesday and I don't know how to do any of it!