What Is the Vapor Pressure Above a Solution Prepared by Dissolving

question 57

Multiple Choice

What is the vapor pressure above a solution prepared by dissolving 0.500 mol of a nonvolatile solute in 275 g of hexane (86.18 g/mol) at 49.6°C? P°hexane = 400.0 torr at 49.6°C.

• A)54 torr
• B)154 torr
• C)246 torr
• D)346 torr
• E)400.torr

---

Definitions:

Extraneous Solutions

Solutions that are derived during the process of solving an equation but do not satisfy the original equation.

Equation

A mathematical statement asserting the equality of two expressions, typically involving variables, and solved to find the values of those variables.

Reciprocal

The multiplicative inverse of a number or expression; for any nonzero number x, its reciprocal is 1/x.

Number

A mathematical object used to count, measure, and label.