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Why will the observed melting point range be lower than true value if we heat the sample too fast?
A lower and wider melting point range could indicate that the sample was contaminated with trace amounts of impurities.
How would one determine whether a given sample of aspirin is pure or not?
if the melting point range is between 0.5 to 1 degree celcius
What effect would contaminating the sample with an insoluble impurity have on the melting point?
Soluble impurities (that is, impurities that are included within the crystal matrix) tend to lower the observed melting point and broaden the melting point range. Insoluble impurities have no effect on the melting point. Found from website: http://swc2.hccs.edu/pahlavan/2423L1.pdf
What is livermorium melting point?
It is predicted that the melting point of livermorium will be in the range 350-500 0C .
What is coarse sand and size?
Sand particles range in diameter from 0.0625mm (or 1⁄16 mm, or 62.5 μm) to 2 mm. Coarse sand will have particles between 0.5 and 2mm
Why is it important to determine the melting range of the impure and recrystallized sample of vanillin?
The melting point is an indication of purity.
Why will the observed melting point range be lower than true value if we heat the sample too fast?
A lower and wider melting point range could indicate that the sample was contaminated with trace amounts of impurities.
What is the term of melting point range?
The crystalline solids have a sharp melting point say 87oC but most of the amorphous solids do not have a sharp melting point they have a range of melting say they started melting at 87oC and continue till 89oC.
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
How would one determine whether a given sample of aspirin is pure or not?
if the melting point range is between 0.5 to 1 degree celcius
What effect would contaminating the sample with an insoluble impurity have on the melting point?
Soluble impurities (that is, impurities that are included within the crystal matrix) tend to lower the observed melting point and broaden the melting point range. Insoluble impurities have no effect on the melting point. Found from website: http://swc2.hccs.edu/pahlavan/2423L1.pdf
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.
What would be the effect on the observed melting point if sample was too small?
Using too large of a sample when determining its melting point will flaw your results since, if the sample is too large it will be harder for the sample to melt in the melting point apparatus.
What is the melting range of brass?
900-940
Is it possible for two sample sets to have the same range but different means?
could a sample set have the same range but different means
What is livermorium melting point?
It is predicted that the melting point of livermorium will be in the range 350-500 0C .
Melting point of phenyl trityl ketone?
It has a melting range of 182 to 187 degrees Celsius.
