Simple and Fractional Distillation Worksheet PDF

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CH236: Simple and Fractional Distillation Names:__________________________________________________________ Date: ____________________________

Mixture Chloroform / Cyclohexane Acetone / Ethanol

OBJECTIVE (1 PT) Ethyl Acetate / Heptane In 1-3 sentences, what will you determine from the results of this experiment?

TECHNIQUES (2 PTS) Briefly describe the techniques used in this experiment. Simple distillation: Why is it performed? How is it performed?

Fractional distillation: Why is it performed? How is it different from simple distillation?

EQUIPMENT AND MATERIALS (1PT) List all equipment (including size of glassware) and reagents used in this experiment.

DATA/RESULTS (2 PTS) Note that the tables and plots for each of these distillations must be prepared for this experiment’s writing assignment. Refer to those tables and plots as necessary. Group conducting simple distillation of methanol/water solution _____________ Boiling points of components as determined by simple distillation _____________ Group conducting fractional distillation of methanol/water solution _____________ Boiling points of components as determined by fractional distillation _____________ Describe the trends seen in the plots of temperature vs. drops collected. For fractional distillation of an unknown: Unknown #: ____________ Boiling points: Components of mixture: ____________________________

ANALYSIS (2 PTS) Answer the following questions based on your data and literature values. Compare the effectiveness of simple and fractional distillation in separating the components of the methanol/water mixture.

Do you have confidence in your identification of the unknown mixture? Why or why not? (1-3 sentences)

Boiling Point (°C) 61 / 81 56 / 78 1 / 100 78 / 100...