Essay On Melting Point

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Solubility is the amount of the material that will dissolve in a certain amount of solvent. Polar compounds are more likely to be soluble in polar solvents, such as water, and nonpolar compounds are more likely to dissolve in nonpolar solvents. The most polar bonds have the largest electronegativity difference between the atoms in the bond and the highest boiling points. The attractive forces between polar molecules are dipole forces. These attractive forces of dipoles increase the boiling point. The stronger these forces are, the more the compound must be heated to overcome the attractions, therefore, the higher the melting and boiling points. As a compound is heated to its melting point, its lattice breaks and it dissolves. The purpose if…show more content…
The compound was confirmed to be Benzophenone acid. A solid usually melts over a range of temperatures rather than at one specific temperature. A common mistake in recrystallization is that the compound is not completely dry when finding the melting point. Benzophenone acid was the predicted compound after having measured the melting points of the original unknown compound; The melting point is a physical property of a solid and can be used to help identify a substance. Benzophenone acid was the known compound that was used in the 50/50 mixture. The melting point of the 50/50 mixture was comparable to the melting points of the original unknown compound (Table 3). This meant that unknown compound was confirmed to be Benzophenone acid. If two samples that are mixed together are the same, the melting point will stay the same. This is what occurred in the experiment. It is known that, different molecules do not fit into each other's crystal lattices in exactly the same way. If the two mixed samples were different, the melting point would have been lower. Compounds have unique melting ranges due to the varying intermolecular forces between the atoms. As the forces increase in strength, the boiling point also increases. Another common mistake in recrystallization is heating the compound too quickly when taking its

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