**FRACTIONAL DISTILLATION LAB** **NOTE: PLEASE IGNORE SIMPLE DISTILLATION AND US
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Question
**FRACTIONAL DISTILLATION LAB**
**NOTE: PLEASE IGNORE SIMPLE DISTILLATION AND USE *FRACTIONAL DISTILLATION INSTEAD----
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What is the purpose of today's lab? 2. What is happening when a liquid superheats? 3 How can we prevent "bumping" of a liquid? 4 What is the difference between Simple and Fractional distillation? . Which compound has a higher boiling point, ethanol or dimethyl ether? Explain 6. What are azeotropic mixture? 7 In today's setup what is the position of the thermometer? 8 What are two ideal solvents that we can separate using simple distillation?Explanation / Answer
1)
The purpose that achieved through lab is to develop skills,understanding the concepts,cognitive abilities,understanding the nature of science,develop the attitudes on science.
2)
Any liquid that exists in the liquid form above its boiling temperature is said to be superheated liquid.
3)
Bumping can be arrested by adding a grain of solid.Eg:Calcium carbonate,porcelain bit
4)
Simple Distillation: It is the method used to separate substances in mixture with significantly different boiling points .
Fractional Distillation: It is used to separate substance is mixture with boiling points close to each other.
5)
Ethanol has much higher boiling point than Dimethyl ether.Because of the presence of Hydrogen bonding between the ethanol molecule.But in ether it doesn't.
6)
Azeotropic mixture are defined as the mixture of liquid which boil at constant temperature like a pure liquid and posses same composition like a pure liquid and posses same composition of components in liquid as well as in vapor pressure
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