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melting point- 136 degree C boiling point- 140 degree C
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∙ 14y ago
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∙ 15y agoyes, it is very close to the melting point: 138-140C.
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∙ 12y agoThe type of intermolecular force holding it together, combined with its total molar mass.
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Chem PhD
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∙ 11y agoh-bonds. Aspirin has one, salicylic acid has two.
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∙ 12y ago137 .C
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∙ 12y agonope
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Liquid to solid temp?
This temperature is called freezing point (the value is equivalent to the melting point).
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.
What is the specific heat of liquid uranium?
This value is 198 J/kg.K at the melting point of uranium.
When the observed melting point is less than standard value what inference will you get?
because of impurity present in it
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.
If a substance is impure what will be the two effects on its melting point compared to the literature value?
the impurities will lower the melting point value.
What do melting melting point and freezing point have in common?
They have an equal value and are synonyms.
What is the approximate value of the normal melting point?
Each material has a specific melting point.
What is the value of delta g at melting point?
At the melting point, the solid and liquid phases are in equilibrium so the value of delta G is zero.
What is the melting point of toner?
The melting point of toner is approx. 120 oC; the value is specific or each manufacturer.
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 is the melting point of onyx?
Super value le
What value of temperature of melting point of ice and boiling point of waterpoint?
The melting point of water is 0 oC and the boiling point of water is 100 oC.
When the observed melting point is less than the stanadr value what inference will you get?
The substance whose melting point is being observed is impure.
What is beryllium melting point is it high or low?
Beryllium melting point is: 1 287 0C; the value is generally considered as high.
Why is it misleading to identify a solid compound just from a lone melting determination?
Because the melting point can be very similar; also impurities change the value of the melting point.
What element has a low melting point francium or plantinum?
The metal francium has a much lower melting point than platinum has.
