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Why is mixed melting point in organic compound?
Impurities will usually lower the melting point of an organic compound. Impurities also increase the range of melting points in the compound. This means the temperature ne…eded for melting isn't consistent.
They usually are long "chains" of hydrocarbon that only attracted to the weakest intermolecular bonds. Bonds between molecules are generally weaker so they tend to melt faste…r when compare to the melting point of stronger intermolecular bonded molecules.
Compounds with high melting points have ionic bonds. This is because atoms with ionic bonds show strong attractions to other ions in their vicinity.
Inorganic compounds have high melting points because of the ionic bonds they form. Compare this to an organic substance, made up of covalent bonds thus causing a low melting p…oint.
Organic compounds generally are long hydrocarbon chains which are only attracted to each other by Van der Waals bonds which are the weakest intermolecular bonds. Since the bon…ds between molecules are weaker, they tend to melt much more quickly then stronger intermolecular bonded molecules.
The melting point increases and the freezing point consequently decreases.
ionic compounds have high melting points because the have strong intermolecular forces. Molecular compounds boiling point is lower however because they have less strong inte…rmolecular forces. the strength of the intermolecular forces vary with the strength of the electro negativity of an atom. for instance H2O has a higher boiling point than H2S because Oxygen has a higher electro negativity. The strength of the intermolecular forces between non-polar molecules is even weaker than that between polar molecules.
The melting point of an impure compound is almost *always* lower than that of a pure compound.
It's because of the properties of a covalent bond. 1. The covalent bond is a compound between two or more non-metals. Non-metals have low melting points. 2. it tends …to not form crystals which is crystal lattice. It can be easily broken. 3. The attractions are weak. (which can also be the one of the reasons why it isn't in a crystal form.) I wish this small words help you. As you may recall, ionic compounds have very high melting and boiling points because it takes a lot of energy for all of the + and - charges which make up the crystal to get pulled apart from each other. Essentially, when we have an ionic compound, we need to break all of the ionic bonds in order to make it melt. On the other hand, when we have covalent compounds we don't need to break any bonds at all. This is because covalent compounds form distinct molecules, in which the atoms are bound tightly to one another. Unlike in ionic compounds, these molecules don't interact with each other much (except through relatively weak forces called "intermolecular forces"), making them very easy to pull apart from each other. Since they're easy to separate, covalent compounds have low melting and boiling points.
No, they actually have a very high melting point.
All ionic compounds form crystals. So far as I know, there are no exceptions to this. Again, salts like to form crystals because when you have a whole bunch of little electric…al positive and negative charges all stuck together, they seem to like to bunch into little stacking groups. The arrangement that these ions like to stack into is different, and is referred to as the "unit cell". There are ten or so different general shapes of unit cells. When you get to graduate school, ask me about them. For high school classes, it's really not all that important. Ionic compounds tend to have high melting and boiling points. When I say "high", what I mean is "very, very high." Most of the time, when you work with ionic compounds in a chemistry class, the melting point is hot enough that you can't melt them with a Bunsen burner. So, why are these temperatures so high? Well, it has to do with the way that ionic materials are held together. Remember how we said above that ionic compounds form crystals? These crystals are basically just great big blocks of positive and negative charges all stuck together. To break the positive and negative charges apart, it takes a huge amount of energy. This means that if we heat up the compound to add energy, it takes a huge amount of energy to break it apart.
Melting point is important in organic chemistry because it can be used for the identification of a compound. For pure solid organic compounds will have a small melting point …range (0.5-10C),thus presence of impurity can also be find out by Melting point.
Covalent compounds tend to be negatively charged than an ionic compound.
In ionic compounds, there are strong attractions among the ions; therefore it takes a lot of energy to break those bonds. High melting point depends on bond strength. When tal…king about bond strength in ionic compounds, I mean lattice energy. So the easiest answer is: They have a high lattice energy. The strong electrostatic interactions between ions require a lot of energy to break the bonds.
This question is much too broad to get a correct answer. There are thousands of organic compounds, and a large number of those could have a melting point of 122.3-123.