A Solution Consisting of 0

question 47

Multiple Choice

A solution consisting of 0.228 mol of methylbenzene,C₆H₅CH₃,in 255 g of nitrobenzene,C₆H₅NO₂,freezes at -0.3°C.Pure nitrobenzene freezes at 6.0°C.What is the freezing-point depression constant of nitrobenzene?

• A) 1.1°C/m
• B) 27°C/m
• C) 14.0°C/m
• D) 3.5°C/m
• E) 7.0°C/m

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