A 0300 G Sample of Caffeine Was Dissolved in 10 $\circ$

question 40

Multiple Choice

A 0.300 g sample of caffeine was dissolved in 10.0 g of camphor (K_f = 39.7 ^$\circ$ C/m) ,decreasing the freezing point of camphor by 3.07 ^$\circ$ C.What is the molar mass of caffeine?

• A)47.0 g/mol
• B)194 g/mol
• C)388 g/mol
• D)94.0 g/mol
• E)97.0 g/mol

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Definitions:

Matching Principle

An accounting concept that expenses should be recorded in the same period as the revenues they help to generate.