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A solution is 40.0% by mass benzene (C6H6) in carbon tetrachloride (CCl4) at 20C. The vapor pressure ...

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allihubbard:
A solution is 40.0% by mass benzene (C6H6) in carbon tetrachloride (CCl4) at 20°C.  The vapor pressure of pure benzene and pure carbon tetrachloride at this temperature is 74.61 mmHg and 91.32 mmHg, respectively.  Calculate the vapor pressure of the solution at 20°C:
◦ 66.4 mmHg
◦ 73.8 mmHg
◦ 81.8 mmHg
◦ 83.0 mmHg
◦ 84.6 mmHg

KobyRhoads:
81.8 mmHg

jmcharles:
Thanks

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