A Solution Is 35

question 118

Multiple Choice

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

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Definitions:

Sample Standard Deviation

Sample Standard Deviation is a measure that quantifies the amount of variation or dispersion of a set of sample data values around the sample mean.

Ages

A quantitative variable representing the length of time that an individual or object has existed.

Standard Deviation

A quantification tool that assesses how much data values diverge or spread out from their mean.

Mean Age

The average age of a group of people, calculated by summing their ages and dividing by the number of individuals.