The Normal Boiling Point of Pure Benzene Is Found to Be

question 9

Multiple Choice

The normal boiling point of pure benzene is found to be 80.10°C.What is the approximate molecular weight of a nonionizing substance if a solution of 3.55 g of the substance dissolved in 100.g of benzene has a normal boiling point of 80.19°C? K_b = 5.12°C/m for benzene,C₆H₆.

• A)20 amu
• B)500 amu
• C)2000 amu
• D)20,000 amu

---

Definitions:

Fifth-Wheel Height

The vertical measurement from the ground to the fifth-wheel coupling device on a trailer, important for hitching and stability.

Industry Standard

Typically accepted criteria or practices within an industry that help ensure quality, safety, and efficiency.

Refrigerated Trailer

A type of trailer equipped with a refrigeration unit, used for transporting perishable goods at controlled temperatures.

Duct-Type Floor

A flooring system incorporating ducts for the purpose of air distribution, commonly used in vehicles or buildings for heating or cooling.