Simple and Fractional Distillation

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Chemistry Department Chemistry 221 Lab Report Lab report #2 Name: Fatima Mustafa Student Number: 1120705 Date: 8/7/2014 Simple Distillation & Fractional Distillation Objectives: 1) To purify a compound by separating it from a non-volatile or less-volatile material. 2) To separate a mixture of two miscible liquids (liquids that mix in all proportions) Procedure: Simple distillation: 1- Make a mixture of (acetone-water) 50 mL each and pour it into a 250 mL round bottomed flask. 2- Add 3-4 boiling chips to avoid bumping. 3- Put together the set up as shown in the figure below 4- Record the temperature at each 5-mL interval. Do not distill to dryness. Fractional distillation: The same procedure, just add a fractional tube between the flask and the still head. Data and Observations: Chemicals: acetone | Water | | | For simple distillation Volume | Temperature | 5 ml (acetone) | 60.0 oC | 10 ml | 62.5 oC | 15 ml | 64.0 oC | 20 ml | 65.0 oC | 25 ml | 66.0 oC | 30 ml | 68.0 oC | 35 ml | 70.0 oC | 40 ml | 73.5 oC | 45 ml | 79.0 oC | 50 ml (water) | 90.0 oC | 55 ml | 96.0 oC | 60 ml | 97.0 oC | 65 ml | 97.5 oC | 70 ml | 99.0 oC | For fractional distillation: Volume | Temperature | 5 ml | 58.0 oC | 10 ml | 59.0 oC | 15 ml | 59.5 oC | 20 ml | 59.8 oC | 25 ml | 60.0 oC | 30 ml | 61.8 oC | 35 ml | 62.5 oC | 40 ml | 68.0 oC | 45 ml | 85.0 oC | 50 ml | 96.0 oC | 55 ml | 96.5 oC | 60 ml | 96.8 oC | Summary of results: Figure.1: curve of simple distillation Figure.2: curve of fractional distillation Discussion: As the mixture is heated the temperature rise until it reaches the temperature of the lowest boiling point in the mixture, while the other component, of the
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