Mickey C.

asked • 11/01/17

Refractive Index - ORGANIC CHEMISTRY LAB

A student attempts to separate a sample of cyclohexane and ethylbenzene by distillation. After the distillation the student obtains an n 20of 1.4355 for what should be pure cyclohexane with a volume of 23.5 mL. Did the student obtain pure cyclohexane? If not, what volume of ethylbenzene is present in the distilled cyclohexane?
 
Refractive Indices (n20D)
cyclohexane (1.4266)
ethylbenzene (1.495)
 

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