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Melting & boiling points
Course: Principles Of Chemistry I Laboratory (CHEM 109)
7 Documents
Students shared 7 documents in this course
University: York College CUNY
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Melting and Boiling Points
Objectives
1)To determine the melting point and boiling point of unknown compounds.
2)To identify a solid unknown by measuring mixed melting points.
3)To properly use general instrumentation to illustrate the principal in the laboratory.
Introduction
The melting point of a compound is the temperature at which the solid phase is in
Equilibrium with the liquid phase.
The boiling point of a liquid is the temperature at which the liquid reaches a vapor
pressure that is equal to the external pressure.
Materials
1. Small sample of p-dichlorobenzene
2. Capillary tube
3. Spatula
4. Apparatus
5. Acetamide
6. Thermometer
7. Small test tube
8. Ring stand
9. Clamp
10.Wire gauze
11. Water
12.Pipet
13.Acetone
14.Hot plate
15.Ethyl alcohol
16.Normal size test tube
17.Two hole cork
