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How does two different pure organic compounds can have the same melting point?
Two different pure organic compounds can have the same melting point if they have similar molecular structures and intermolecular forces. The similarities in molecular structure and forces can lead to similar interactions between molecules, resulting in both compounds melting at the same temperature. This phenomenon is known as "melting point depression."
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.
Why a sharp melting point could not be obtained always?
the melting point of pure substances is always being sharp. it means that the boiling point it have it will boil at that point not some up or down but on same temperature in other words we say that it has no impurities because of impurities it boiling point varies and it has many other components and boiling point of every component is different so that why the boiling point of impure compounds varies or it don t have exact value and the pure compounds have same elements combine together and every molecule boil at particular point so it has sharp melting point or exact point
What is the melting point of pure stearic acid?
The melting point of pure stearic acid is around 69-72°C.
How can you tell if a substance is pure or not?
You can tell if a substance is pure by using techniques like melting point determination or chromatography to compare against known pure samples. If the substance has a consistent melting point or chromatogram, it is likely pure. Impurities can cause a substance to have a lower melting point or show additional peaks in chromatography.
How does two different pure organic compounds can have the same melting point?
Two different pure organic compounds can have the same melting point if they have similar molecular structures and intermolecular forces. The similarities in molecular structure and forces can lead to similar interactions between molecules, resulting in both compounds melting at the same temperature. This phenomenon is known as "melting point depression."
If a liquid and soild exist in equilibrium over a considerabil wider rang of temperature while you measure the melting point of compound what do you think about the purity of your compound?
The compound is not pure; pure compounds have a definite melting point.
The melting point of pure simazine is 225-227. If the melting point of your product was different what could be the explanation?
That it is not 'pure'; it may have been mixed with something else, which would give it a different characteristic.
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 effect does mixing the metals into an alloy have on the melting point?
Mixing metals into an alloy generally lowers the melting point compared to the melting points of the individual pure metals. This phenomenon occurs due to the disruption of the orderly crystal structure of the pure metals, which creates a more complex arrangement in the alloy. Additionally, the presence of different elements can lead to the formation of intermetallic compounds with unique melting characteristics. Overall, the melting point of an alloy is influenced by its composition and the interactions between the constituent metals.
Why a sharp melting point could not be obtained always?
the melting point of pure substances is always being sharp. it means that the boiling point it have it will boil at that point not some up or down but on same temperature in other words we say that it has no impurities because of impurities it boiling point varies and it has many other components and boiling point of every component is different so that why the boiling point of impure compounds varies or it don t have exact value and the pure compounds have same elements combine together and every molecule boil at particular point so it has sharp melting point or exact point
What is the purpose of determining boiling point and melting point?
Boiling point- the temperature and pressure at which a liquid and a gas are in equilibrium. But also, it is very useful in determining the purity of a substance. If the melting point is known of the pure substance, than you can measure the melting point of what you've got and see if it matches. If the melting (or boiling) point is the same, than that is a good indication that the compound you have is what you think it is, and it is pure. If they are different from each other, that indicates that your compound is not pure.
Why is mixed melting point in organic compound?
A mixed melting point in organic compounds occurs when two different compounds are combined, and the resulting mixture has a lower melting point than the individual components. This phenomenon is often indicative of the presence of impurities or the formation of a solid solution, which disrupts the orderly crystal lattice structure of the pure substances. Consequently, the melting point decreases due to the disruption of intermolecular forces, leading to a less stable solid form. This property is commonly used in organic chemistry to assess the purity of substances.
How are the melting points of alloys different from those of the pure metals?
Each material has specific melting point; and an alloy is not a single element.
Why does chocolate and ice have different melting points?
Chocolate and ice have different melting points because they are made up of different compounds and structures. Chocolate contains cocoa butter and sugar, which have a higher melting point than water, the main component of ice. Additionally, chocolate is a mixture of different ingredients, whereas ice is a pure substance, which can also affect their melting points.
Freezing point of pure substance 21 degrees what is the melting point?
The melting point of a substance is the same as its freezing point in a closed system. Therefore, if the freezing point of a pure substance is 21 degrees Celsius, its melting point would also be 21 degrees Celsius.
Is the melting point of organic compound high or low?
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.
