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What are some possible explanations to why melting point of your isolated caffeine was lower than the literature value?
Melting points should always be reported as a range. Maybe during purification process was not perfect, and there were impurities in the caffeine that were affecting the melting point. The melting point is depressed due to impurities in the sample. The caffeine is usually not 100% pure, maybe improper isolation procedure and also the impurity is likely solvent.
Definition of melting method?
it is something that you melt
Define boiling point and melting point?
MELTING POINT:-The point at which solid starts melting and turn into liquid it iscalled MELTING POINT.BOILING POINT:-The point at which liquid molecules starts escaping fromthe surface and turn into gas is called BOILING POINT.
Definition of Data Range?
the difference of greatest data value minus least data value = data range
What is The definition of boundary?
the point where a system ends and surroundings begin
What is livermorium melting point?
It is predicted that the melting point of livermorium will be in the range 350-500 0C .
What will happen when you compare the freezing point and melting point of water?
By definition, they are the same!
How does the melting point of the crude sample compare with that of the purified sample?
An impure sample will have a lower melting point, and will also have wider melting point range than that of a pure sample of the same substance. a sharp melting point range can also indicate a eutectic mixture
Why is it incorrect to speak of melting point?
It is incorrect to speak of a "melting point" because melting is a process, not a specific point. Instead, we should refer to the melting range, which indicates the range of temperatures over which a substance changes from a solid to a liquid.
Is an alloy of aluminum has a melting range instead of a melting point is the alloy a compound?
It is a compound. All pure elements have a certain exact melting point.
Why will it still have a melting point range although a crystal may be pure?
Even in pure crystals, the melting point range can still exist due to imperfections or defects in the crystal lattice. These defects can cause different parts of the crystal to melt at slightly different temperatures, leading to a range of melting points rather than a single sharp melting point.
What is the melting point of PVP K30?
not 0 degrees
What is the term of melting point range?
The melting point range refers to the temperature range over which a substance transitions from a solid to a liquid state. It is the interval in which the solid begins to melt and continues to completely liquefy. This range is typically represented by a lower and upper temperature limit.
When an obtained melting point range is broad what does it tell about the substance?
strong intermolecular forces attract the molecules
Melting point of phenyl trityl ketone?
It has a melting range of 182 to 187 degrees Celsius.
What is the melting point of Montelukast sodium?
Montelukast sodium has a melting point range of approximately 243-253 degrees Celsius.
What is the melting point range of Maleic acid?
The melting point range of maleic acid is typically between 130-139°C.
