# Problem: A solution is 40.0% by volume benzene (C6H6) in carbon tetrachloride at 20°C. The vapor pressure of pure benzene at this temperature is 74.61 mmHg and its density is 0.87865 g/cm3; the vapor pressure of pure carbon tetrachloride is 91.32 mmHg and its density is 1.5940 g/cm3. If this solution is ideal, its total vapor pressure at 20°C isA) 84.64 mmHg.B) 84.30 mmHg.C) 82.96 mmHg.D) 81.63 mmHg.E) 165.93 mmHg.

79% (64 ratings)
###### Problem Details

A solution is 40.0% by volume benzene (C6H6) in carbon tetrachloride at 20°C. The vapor pressure of pure benzene at this temperature is 74.61 mmHg and its density is 0.87865 g/cm3; the vapor pressure of pure carbon tetrachloride is 91.32 mmHg and its density is 1.5940 g/cm3. If this solution is ideal, its total vapor pressure at 20°C is

A) 84.64 mmHg.

B) 84.30 mmHg.

C) 82.96 mmHg.

D) 81.63 mmHg.

E) 165.93 mmHg.

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the The Colligative Properties concept. You can view video lessons to learn The Colligative Properties. Or if you need more The Colligative Properties practice, you can also practice The Colligative Properties practice problems.

What is the difficulty of this problem?

Our tutors rated the difficulty ofA solution is 40.0% by volume benzene (C6H6) in carbon tetra...as medium difficulty.

How long does this problem take to solve?

Our expert Chemistry tutor, Jules took 8 minutes and 12 seconds to solve this problem. You can follow their steps in the video explanation above.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Liu's class at UNT.