A Solution Is 35 $\circ$ C the Vapor Pressure of Pure Benzene and Pure Carbon

question 32

Multiple Choice

A solution is 35.0% by mass carbon tetrachloride (CCl₄) in benzene (C₆H₆) at 20 ^$\circ$ 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 ^$\circ$ C:

• A) 58.1 mmHg
• B) 78.2 mmHg
• C) 80.5 mmHg
• D) 82.9 mmHg
• E) 83.0 mmHg

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Definitions:

Financial Return

The profit or loss generated on an investment over a particular period, expressed as a percentage of the investment's initial cost.

Rate of Return

The gain or loss on an investment over a specified period, expressed as a percentage of the investment's cost.

Present Value

The present value of a future amount of money or series of cash flows, discounted at a certain rate of return.

Cash Flows

The total amount of money being transferred into and out of a business, particularly in the context of operating, investing, and financing activities.