A solution is 35.0% by mass carbon tetrachloride (CCl4) in benzene (C6H6) 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:
A) 58.1 mmHg
B) 78.2 mmHg
C) 80.5 mmHg
D) 82.9 mmHg
E) 83.0 mmHg
Correct Answer:
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