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*usually* melting point is a good indicator of a substance's purity. The technique of melting point determination is used frequently in organic chemistry labs.

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13y ago
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7y ago

This is possible because the melting and boiling point are specific properties.

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Q: How do the melting and boiling point determine the purity of the substance and identify them?
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Related questions

How can the melting and boiling point help you identify it?

Each pure substance has its own unique melting and boiling point.


How do you identify the change of state a substance is undergoing?

through it's boiling, melting, and freezing point.


What are you physical properties that can help you identify a substance?

The traditional ones are melting point and boiling point.


What is the significance of boiling point and melting point of a substance?

Melting points and boiling points are phyical constants which means specific compounds have specific melting/boiling points. Therefore you can identify a substance if you determine the mp/bp. Also you measure the purity of a mixture using melting point tests.


How does boiling point and melting point find a substance?

what is the melting point and boiling point of substance


What are two physical properties that can help you identify a substance?

The traditional ones are melting point and boiling point.


How can physical properties be used to identify substance?

Every substance has certain properties that show things about them, such as odor, taste, malleability, hardness, color, state at room temperature, and melting/boiling point. If you know the color of a substance, it is far easier to determine what that substance is, and if you know the color and the boiling point, your choices are limited even further. Using the physical properties of a substance, you can identify the substance based off of its unique properties or combinations of properties.


What physical property dose not identify a substance?

boiling point --------- Boiling point is a specific characteristic of a substance or element; the mechanical strength, the viscosity, the electrical resistivity are more difficult to be used for a sure identification of a substance.


How do you identify solids at melting or boiling points?

Melting and boiling points are different for each compound or element.


Will there be effect on melting or boiling point of a substance if another substance is added to it?

Yes, impurities have important effects on the melting and boiling point of materials.


How could the identify of a compound be established by melting point?

Pure substances have very specific melting (and boiling) points. Assuming the substance is pure you could measure the melting point and compare it to a known database of melting points.


Why can boiling points and freezing points be used to identify substance?

It's because substances have different boiling point and freezing point. By finding the exact boiling point and freezing point, you can identify a substance. Keep in mind that a material's melting point is the same as its freezing point. These are just different terms for the same thing, it just depends on whether energy is being removed from a substance (freezing) or if energy is being added to a substance (melting). The same thing also applies to the boiling/condensation point.