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What else can I help you with?
How can a mixed melting point confirm the identity of an unknown compound?
The melting point is not enough to definitely identify the compound because different compounds may have a similar melting point range. It all depends on the compounds. If you have a compound of acetanilide and flourene, the results will lead to similar melting points of 115 degrees Celsius and 116 degrees of Celsius. The ranges will be similar so it would be hard to definitely identify the compound.
What effect would too rapid heating have upon apparent melting point of a compound?
Too rapid heating can lead to an inaccurate measurement of the melting point, as the heat may not be evenly distributed throughout the sample, causing the melting point to appear lower than it actually is. This can result in a broadened melting range or even a false melting point. It is essential to heat the sample gradually to obtain an accurate melting point.
Why would the melting point of a molecular compound generally be lower than an ionic compound?
The ionic bond is stronger.
How could you positively identify a compound using only melting point determinations?
I do not believe that any chemist would choose to identify a compound by using only the melting point; why create such difficulties for yourself?
What information would the melting point give you in terms of the bonding of a compound?
Ionic compounds have melting points higher than covalent compounds.
Which compound has a high melting point covalent and non metals?
A possible compound would be silicon dioxide with giant covalent structure and strong covalent bonds.
How do impurities affect the melting point of compound?
effects that impurities have on melting point iof a pre compound. I learned that it is because the impurities "defect" the crystal lattice of the compound. A pure compound is a structure of high molecular symmetry. An impurity is rather assymetrical, or is a poorly organized structure. If the impurites are present with the pure compound, the melting point will deviate because melting point is also dependent on the high symmetry and organization of molecular structures,
You are given the melting points of three unknown substances and are asked to predict which one is an ionic compound You would select the compound with the?
Highest melting point. (Note that this does not assure that the remaining compounds are not also ionic.)
How would you determine the purity of the solid crystals in crystallization?
One of the easier and more reliable ways to check if a solid compound is pure after re-crystallization is to check its melting point. Impurities will always lower the melting point of a sample, and the more impure, the lower the melting point will be. By checking the melting point of your sample with a reference value from a book or reliable internet source, it can be determined exactly how impure the sample is. If perhaps your compound is unknown, and thus are unable to obtain a reference value, you could obtain melting point of the sample, and then re-crystallize a few more times, obtaining a new melting point each time, until it is unchanged by re-crystallizing. This will of course decrease your yield, but if there is little fluctuation in your series of melting points, you can be sure you have a relatively pure sample.
Does salt usually have a low melting point?
Yes salts have a low melting point. I think...
What effect would increasing the quantity of paradichlorobenzene have on the melting point temperature?
The melting point of the substance should not change as all substances have specific melting, boiling, condensation, and freezing points. It would, however, require more energy (in this case, heat) to melt the increased quantity of paradichlorobenzene in the same amount of time.
If a substace is a liquid already what would it be before the melting point?
It would be solid before it reached the melting point. If it is liquid, it has already reached the melting point.
